{"id":5228,"date":"2026-06-05T08:57:56","date_gmt":"2026-06-05T08:57:56","guid":{"rendered":"https:\/\/dycarbonfiber.com\/?p=5228"},"modified":"2026-06-05T09:00:54","modified_gmt":"2026-06-05T09:00:54","slug":"square-carbon-fiber-tube-vs-round-stiffness","status":"publish","type":"post","link":"https:\/\/dycarbonfiber.com\/cs\/square-carbon-fiber-tube-vs-round-stiffness\/","title":{"rendered":"\u010ctvercov\u00e1 trubka z uhl\u00edkov\u00fdch vl\u00e1ken vs. kulat\u00e1 trubka: Vysv\u011btlen\u00ed rozd\u00edl\u016f v tuhosti pro leteck\u00fd pr\u016fmysl"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"5228\" class=\"elementor elementor-5228\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-628b08e1 e-con-full e-flex e-con e-parent\" data-id=\"628b08e1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5324d332 elementor-widget elementor-widget-image\" data-id=\"5324d332\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/dycarbonfiber.com\/cs\/products-03\/carbon-fiber-cnc-parts\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/elementor\/thumbs\/blog-page-banner-rcavplavw4yufbwplfxw5ut3f6ji4ueey1h1uetaq0.jpg\" title=\"blog-str\u00e1nka-banner\" alt=\"blog-str\u00e1nka-banner\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5ffe3086 e-flex e-con-boxed e-con e-parent\" data-id=\"5ffe3086\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-66c730f1 elementor-widget elementor-widget-heading\" data-id=\"66c730f1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Why Does a Carbon Fiber Square Tube Show Lower Stiffness Than a Round Tube?<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-749dc0b3 jkit-social-shape shape-none elementor-widget elementor-widget-jkit_social_share\" data-id=\"749dc0b3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"jkit_social_share.default\">\n\t\t\t\t\t<div  class=\"jeg-elementor-kit jkit-social-share jeg_module___6a6556402b006\" ><ul class=\"social-share-list\"><li class=\"elementor-repeater-item-aff51ff\" data-social=\"facebook\">\n\t\t\t\t<a href=\"#\" class=\"facebook social-icon\" aria-label=\"sd\u00edlen\u00ed na soci\u00e1ln\u00edch s\u00edt\u00edch\"><svg viewbox=\"0 0 320 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M279.14 288l14.22-92.66h-88.91v-60.13c0-25.35 12.42-50.06 52.24-50.06h40.42V6.26S260.43 0 225.36 0c-73.22 0-121.08 44.38-121.08 124.72v70.62H22.89V288h81.39v224h100.17V288z\"><\/path><\/svg><\/a>\n\t\t\t<\/li><li class=\"elementor-repeater-item-72614b4\" data-social=\"twitter\">\n\t\t\t\t<a href=\"#\" class=\"twitter social-icon\" aria-label=\"sd\u00edlen\u00ed na soci\u00e1ln\u00edch s\u00edt\u00edch\"><svg viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M459.37 151.716c.325 4.548.325 9.097.325 13.645 0 138.72-105.583 298.558-298.558 298.558-59.452 0-114.68-17.219-161.137-47.106 8.447.974 16.568 1.299 25.34 1.299 49.055 0 94.213-16.568 130.274-44.832-46.132-.975-84.792-31.188-98.112-72.772 6.498.974 12.995 1.624 19.818 1.624 9.421 0 18.843-1.3 27.614-3.573-48.081-9.747-84.143-51.98-84.143-102.985v-1.299c13.969 7.797 30.214 12.67 47.431 13.319-28.264-18.843-46.781-51.005-46.781-87.391 0-19.492 5.197-37.36 14.294-52.954 51.655 63.675 129.3 105.258 216.365 109.807-1.624-7.797-2.599-15.918-2.599-24.04 0-57.828 46.782-104.934 104.934-104.934 30.213 0 57.502 12.67 76.67 33.137 23.715-4.548 46.456-13.32 66.599-25.34-7.798 24.366-24.366 44.833-46.132 57.827 21.117-2.273 41.584-8.122 60.426-16.243-14.292 20.791-32.161 39.308-52.628 54.253z\"><\/path><\/svg><\/a>\n\t\t\t<\/li><li class=\"elementor-repeater-item-4bf88d2\" data-social=\"linkedin\">\n\t\t\t\t<a href=\"#\" class=\"linkedin social-icon\" aria-label=\"sd\u00edlen\u00ed na soci\u00e1ln\u00edch s\u00edt\u00edch\"><svg viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M100.28 448H7.4V148.9h92.88zM53.79 108.1C24.09 108.1 0 83.5 0 53.8a53.79 53.79 0 0 1 107.58 0c0 29.7-24.1 54.3-53.79 54.3zM447.9 448h-92.68V302.4c0-34.7-.7-79.2-48.29-79.2-48.29 0-55.69 37.7-55.69 76.7V448h-92.78V148.9h89.08v40.8h1.3c12.4-23.5 42.69-48.3 87.88-48.3 94 0 111.28 61.9 111.28 142.3V448z\"><\/path><\/svg><\/a>\n\t\t\t<\/li><li class=\"elementor-repeater-item-72001e9\" data-social=\"pinterest\">\n\t\t\t\t<a href=\"#\" class=\"pinterest social-icon\" aria-label=\"sd\u00edlen\u00ed na soci\u00e1ln\u00edch 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3.2-26.4-1.3-2.5-5-3.9-10.5-6.6z\"><\/path><\/svg><\/a>\n\t\t\t<\/li><li class=\"elementor-repeater-item-6cdb9b5\" data-social=\"vkontakte\">\n\t\t\t\t<a href=\"#\" class=\"vkontakte social-icon\" aria-label=\"sd\u00edlen\u00ed na soci\u00e1ln\u00edch s\u00edt\u00edch\"><svg viewbox=\"0 0 576 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M545 117.7c3.7-12.5 0-21.7-17.8-21.7h-58.9c-15 0-21.9 7.9-25.6 16.7 0 0-30 73.1-72.4 120.5-13.7 13.7-20 18.1-27.5 18.1-3.7 0-9.4-4.4-9.4-16.9V117.7c0-15-4.2-21.7-16.6-21.7h-92.6c-9.4 0-15 7-15 13.5 0 14.2 21.2 17.5 23.4 57.5v86.8c0 19-3.4 22.5-10.9 22.5-20 0-68.6-73.4-97.4-157.4-5.8-16.3-11.5-22.9-26.6-22.9H38.8c-16.8 0-20.2 7.9-20.2 16.7 0 15.6 20 93.1 93.1 195.5C160.4 378.1 229 416 291.4 416c37.5 0 42.1-8.4 42.1-22.9 0-66.8-3.4-73.1 15.4-73.1 8.7 0 23.7 4.4 58.7 38.1 40 40 46.6 57.9 69 57.9h58.9c16.8 0 25.3-8.4 20.4-25-11.2-34.9-86.9-106.7-90.3-111.5-8.7-11.2-6.2-16.2 0-26.2.1-.1 72-101.3 79.4-135.6z\"><\/path><\/svg><\/a>\n\t\t\t<\/li><\/ul><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cc46360 e-flex e-con-boxed e-con e-parent\" data-id=\"cc46360\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-1e154a34 e-con-full e-flex e-con e-child\" data-id=\"1e154a34\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-90e90cd elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"90e90cd\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;headings_by_tags&quot;:[&quot;h2&quot;],&quot;exclude_headings_by_selector&quot;:[],&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;marker_view&quot;:&quot;numbers&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\r\n\t\t\t\t\t\t<h4 class=\"elementor-toc__header-title\">\r\n\t\t\t\tObsah\t\t\t<\/h4>\r\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__90e90cd\" aria-expanded=\"true\" aria-label=\"Otev\u0159\u00edt obsah\"><svg aria-hidden=\"true\" 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9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/div>\r\n\t\t\t\t\t<\/div>\r\n\t\t\t\t<div id=\"elementor-toc__90e90cd\" class=\"elementor-toc__body\">\r\n\t\t\t<div class=\"elementor-toc__spinner-container\">\r\n\t\t\t\t<svg class=\"elementor-toc__spinner eicon-animation-spin e-font-icon-svg e-eicon-loading\" aria-hidden=\"true\" viewbox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M500 975V858C696 858 858 696 858 500S696 142 500 142 142 304 142 500H25C25 237 238 25 500 25S975 237 975 500 763 975 500 975Z\"><\/path><\/svg>\t\t\t<\/div>\r\n\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6c559fb6 e-con-full e-flex e-con e-child\" data-id=\"6c559fb6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c4b6559 elementor-widget elementor-widget-image\" data-id=\"c4b6559\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/dycarbonfiber.com\/cs\/products-03\/carbon-fiber-tubes\/\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1080\" height=\"750\" src=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/square-carbon-fiber-tube-vs-round-stiffness.jpg\" class=\"attachment-full size-full wp-image-5244\" alt=\"Zkou\u0161ka tuhosti \u010dtvercov\u00fdch trubek z uhl\u00edkov\u00fdch vl\u00e1ken pro pou\u017eit\u00ed v leteck\u00e9m pr\u016fmyslu\" srcset=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/square-carbon-fiber-tube-vs-round-stiffness.jpg 1080w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/square-carbon-fiber-tube-vs-round-stiffness-300x208.jpg 300w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/square-carbon-fiber-tube-vs-round-stiffness-1024x711.jpg 1024w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/square-carbon-fiber-tube-vs-round-stiffness-768x533.jpg 768w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/square-carbon-fiber-tube-vs-round-stiffness-18x12.jpg 18w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7f69fbad e-flex e-con-boxed e-con e-parent\" data-id=\"7f69fbad\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6d29b7a0 elementor-widget elementor-widget-text-editor\" data-id=\"6d29b7a0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Real Test Results from an Aerospace Project<\/h2><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">In one aerospace project I worked on, a team ran into a problem that did not make sense at first. They tested a <a href=\"https:\/\/dycarbonfiber.com\/cs\/products-03\/carbon-fiber-tubes\/\">\u010dtvercov\u00e1 trubka z uhl\u00edkov\u00fdch vl\u00e1ken<\/a> and a round one. Both were labeled as high-grade carbon fiber. Same supplier, similar weight, similar specs on paper. But when they ran stiffness tests, the square carbon fiber tube bent much more than expected.<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">That result slowed down the whole prototype schedule. The team had to stop and question something they thought was basic: if the material is the same, why is the performance so different? This is where many engineers get caught off guard.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-af40d81 e-flex e-con-boxed e-con e-parent\" data-id=\"af40d81\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6b63390 elementor-widget elementor-widget-image\" data-id=\"6b63390\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/dycarbonfiber.com\/cs\/products-03\/carbon-fiber-tubes\/\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1376\" height=\"768\" src=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/square-carbon-fiber-tube-vs-round-stiffness-03.jpg\" class=\"attachment-full size-full wp-image-5245\" alt=\"Zkou\u0161ka tuhosti \u010dtvercov\u00fdch trubek z uhl\u00edkov\u00fdch vl\u00e1ken pro pou\u017eit\u00ed v leteck\u00e9m pr\u016fmyslu\" srcset=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/square-carbon-fiber-tube-vs-round-stiffness-03.jpg 1376w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/square-carbon-fiber-tube-vs-round-stiffness-03-300x167.jpg 300w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/square-carbon-fiber-tube-vs-round-stiffness-03-1024x572.jpg 1024w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/square-carbon-fiber-tube-vs-round-stiffness-03-768x429.jpg 768w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/square-carbon-fiber-tube-vs-round-stiffness-03-18x10.jpg 18w\" sizes=\"(max-width: 1376px) 100vw, 1376px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-dea771c e-flex e-con-boxed e-con e-parent\" data-id=\"dea771c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-88212d2 elementor-widget elementor-widget-text-editor\" data-id=\"88212d2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"why-carbon-fiber-square-tube-stiffness-often-falls\" class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_&amp;]:clear-end text-base first:mt-0\">Why Carbon Fiber Square Tube Stiffness Often Falls Below Engineering Expectations<\/h2><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Na str\u00e1nk\u00e1ch <a href=\"https:\/\/dycarbonfiber.com\/cs\/products-03\/carbon-fiber-tubes\/\">\u010dtvercov\u00e1 trubka z uhl\u00edkov\u00fdch vl\u00e1ken<\/a> was chosen for a simple reason. It was easier to mount and fit into the structure. From a design view, it made sense. The team assumed the carbon fiber tube stiffness would be close to a round tube with the same weight.<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">But during aerospace testing, the numbers told a different story. Under bending load, the square tube showed more deflection. This became a serious issue because the structure had tight stiffness limits.<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">The problem was not bad material. It was how the shape behaved under load. Flat sides do not carry stress as well as curved surfaces. The corners added stress points instead of helping strength. This is a common issue in structural carbon fiber tube design, but it is often missed early in development.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3c101c2 e-flex e-con-boxed e-con e-parent\" data-id=\"3c101c2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-55edd80 elementor-widget elementor-widget-text-editor\" data-id=\"55edd80\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h3><strong><span class=\"\">Souvisej\u00edc\u00ed \u010dl\u00e1nky:<\/span><\/strong><\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-079fe94 e-flex e-con-boxed e-con e-parent\" data-id=\"079fe94\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7a29f00 elementor-grid-3 elementor-grid-tablet-2 elementor-grid-mobile-1 elementor-widget elementor-widget-portfolio\" data-id=\"7a29f00\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;item_ratio&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:0.6,&quot;sizes&quot;:[]},&quot;row_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:20,&quot;sizes&quot;:[]},&quot;columns&quot;:&quot;3&quot;,&quot;columns_tablet&quot;:&quot;2&quot;,&quot;columns_mobile&quot;:&quot;1&quot;,&quot;item_gap&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"portfolio.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-portfolio elementor-grid elementor-posts-container\" role=\"list\">\r\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post elementor-filter-1 post-5476 post type-post status-publish format-standard has-post-thumbnail hentry category-knowledge-about-carbon\" role=\"listitem\">\r\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/dycarbonfiber.com\/cs\/carbon-fiber-production-selection-guide\/\">\r\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\r\n\t\t\t<img decoding=\"async\" width=\"768\" height=\"495\" src=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-production-manufacturer-768x495.jpg\" class=\"attachment-medium_large size-medium_large wp-image-5478\" alt=\"proces v\u00fdroby uhl\u00edkov\u00fdch vl\u00e1ken ve v\u00fdrobn\u00edm z\u00e1vod\u011b zab\u00fdvaj\u00edc\u00edm se kompozitn\u00edmi materi\u00e1ly\" srcset=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-production-manufacturer-768x495.jpg 768w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-production-manufacturer-300x193.jpg 300w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-production-manufacturer-18x12.jpg 18w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-production-manufacturer.jpg 900w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\r\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\r\n\t\tV\u00fdroba uhl\u00edkov\u00fdch vl\u00e1ken: Co by m\u011bli kupuj\u00edc\u00ed v\u011bd\u011bt p\u0159ed v\u00fdb\u011brem\t\t<\/h3>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/a>\r\n\t\t<\/article>\r\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post elementor-filter-1 post-5425 post type-post status-publish format-standard has-post-thumbnail hentry category-knowledge-about-carbon\" role=\"listitem\">\r\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/dycarbonfiber.com\/cs\/how-to-choose-carbon-fiber-tube-connectors\/\">\r\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\r\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"432\" src=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-tube-connectors-1-768x432.jpg\" class=\"attachment-medium_large size-medium_large wp-image-5426\" alt=\"spojky z uhl\u00edkov\u00fdch vl\u00e1ken pro spojov\u00e1n\u00ed kulat\u00fdch a \u010dtvercov\u00fdch trubek v r\u00e1mu dronu\" srcset=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-tube-connectors-1-768x432.jpg 768w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-tube-connectors-1-300x169.jpg 300w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-tube-connectors-1-1024x576.jpg 1024w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-tube-connectors-1-1536x864.jpg 1536w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-tube-connectors-1-18x10.jpg 18w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-tube-connectors-1.jpg 1920w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\r\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\r\n\t\tSpojky pro trubky z uhl\u00edkov\u00fdch vl\u00e1ken: Jak vybrat spr\u00e1vn\u00fd typ\t\t<\/h3>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/a>\r\n\t\t<\/article>\r\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post elementor-filter-1 post-5409 post type-post status-publish format-standard has-post-thumbnail hentry category-knowledge-about-carbon\" role=\"listitem\">\r\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/dycarbonfiber.com\/cs\/carbon-fiber-tube-supplier-for-your-drawings\/\">\r\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\r\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"512\" src=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-tube-supplier-768x512.jpg\" class=\"attachment-medium_large size-medium_large wp-image-5410\" alt=\"Dodavatel trubek z uhl\u00edkov\u00fdch vl\u00e1ken, kter\u00fd vyr\u00e1b\u00ed trubky z uhl\u00edkov\u00fdch vl\u00e1ken na m\u00edru\" srcset=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-tube-supplier-768x512.jpg 768w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-tube-supplier-300x200.jpg 300w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-tube-supplier-1024x683.jpg 1024w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-tube-supplier-18x12.jpg 18w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/07\/carbon-fiber-tube-supplier.jpg 1080w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\r\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\r\n\t\tJe dodavatel trubek z uhl\u00edkov\u00fdch vl\u00e1ken schopen dodr\u017eet v\u00e1\u0161 individu\u00e1ln\u00ed pl\u00e1n vrstven\u00ed?\t\t<\/h3>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/a>\r\n\t\t<\/article>\r\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post elementor-filter-1 post-5384 post type-post status-publish format-standard has-post-thumbnail hentry category-knowledge-about-carbon\" role=\"listitem\">\r\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/dycarbonfiber.com\/cs\/custom-large-carbon-fiber-sheets\/\">\r\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\r\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"555\" src=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/Large-Carbon-Fiber-Sheets-768x555.jpg\" class=\"attachment-medium_large size-medium_large wp-image-5385\" alt=\"v\u00fdrobce velkoplo\u0161n\u00fdch desek z uhl\u00edkov\u00fdch vl\u00e1ken s mo\u017enost\u00ed v\u00fdroby nadrozm\u011brn\u00fdch panel\u016f z uhl\u00edkov\u00fdch vl\u00e1ken na zak\u00e1zku\" srcset=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/Large-Carbon-Fiber-Sheets-768x555.jpg 768w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/Large-Carbon-Fiber-Sheets-300x217.jpg 300w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/Large-Carbon-Fiber-Sheets-1024x740.jpg 1024w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/Large-Carbon-Fiber-Sheets-18x12.jpg 18w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/Large-Carbon-Fiber-Sheets.jpg 1080w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\r\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\r\n\t\tV\u00fdrobce velkoplo\u0161n\u00fdch desek z uhl\u00edkov\u00fdch vl\u00e1ken | Panely na m\u00edru\t\t<\/h3>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/a>\r\n\t\t<\/article>\r\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post elementor-filter-1 post-5379 post type-post status-publish format-standard has-post-thumbnail hentry category-knowledge-about-carbon\" role=\"listitem\">\r\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/dycarbonfiber.com\/cs\/roll-wrapped-carbon-fiber-tube-vs-pultruded-tube\/\">\r\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\r\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"604\" src=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/Carbon_Fiber_Tube_Manufacturing-01-768x604.jpg\" class=\"attachment-medium_large size-medium_large wp-image-5358\" alt=\"trubka z uhl\u00edkov\u00fdch vl\u00e1ken zabalen\u00e1 v roli\" srcset=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/Carbon_Fiber_Tube_Manufacturing-01-768x604.jpg 768w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/Carbon_Fiber_Tube_Manufacturing-01-300x236.jpg 300w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/Carbon_Fiber_Tube_Manufacturing-01-1024x806.jpg 1024w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/Carbon_Fiber_Tube_Manufacturing-01-15x12.jpg 15w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/Carbon_Fiber_Tube_Manufacturing-01.jpg 1080w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\r\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\r\n\t\tTrubka z uhl\u00edkov\u00fdch vl\u00e1ken balen\u00e1 do role: 5 hlavn\u00edch v\u00fdhod oproti pultrudovan\u00fdm trubk\u00e1m\t\t<\/h3>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/a>\r\n\t\t<\/article>\r\n\t\t\t\t<article class=\"elementor-portfolio-item elementor-post elementor-filter-1 post-5332 post type-post status-publish format-standard has-post-thumbnail hentry category-knowledge-about-carbon\" role=\"listitem\">\r\n\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/dycarbonfiber.com\/cs\/t700-vs-t300-carbon-fiber-tube\/\">\r\n\t\t\t\t<div class=\"elementor-portfolio-item__img elementor-post__thumbnail\">\r\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"573\" src=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/T300-carbon-fiber-tube-with-matte-finish-for-structural-applications-768x573.jpg\" class=\"attachment-medium_large size-medium_large wp-image-5333\" alt=\"\" srcset=\"https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/T300-carbon-fiber-tube-with-matte-finish-for-structural-applications-768x573.jpg 768w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/T300-carbon-fiber-tube-with-matte-finish-for-structural-applications-300x224.jpg 300w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/T300-carbon-fiber-tube-with-matte-finish-for-structural-applications-1024x765.jpg 1024w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/T300-carbon-fiber-tube-with-matte-finish-for-structural-applications-16x12.jpg 16w, https:\/\/dycarbonfiber.com\/wp-content\/uploads\/2026\/06\/T300-carbon-fiber-tube-with-matte-finish-for-structural-applications.jpg 1200w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t<\/div>\r\n\t\t\t\t<div class=\"elementor-portfolio-item__overlay\">\r\n\t\t\t\t<h3 class=\"elementor-portfolio-item__title\">\r\n\t\tT700 vs. T300 \u2013 trubky z uhl\u00edkov\u00fdch vl\u00e1ken: ov\u011b\u0159en\u00ed v\u00fdkonu a kvality\t\t<\/h3>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t<\/a>\r\n\t\t<\/article>\r\n\t\t\t\t<\/div>\r\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5f34d4c e-flex e-con-boxed e-con e-parent\" data-id=\"5f34d4c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0cc8bfc elementor-widget elementor-widget-text-editor\" data-id=\"0cc8bfc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"round-vs-square-carbon-fiber-tube-understanding-sh\" class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_&amp;]:clear-end text-base first:mt-0\">Round vs Square Carbon Fiber Tube: Understanding Shape Effects on Structural Performance<\/h2><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">When you compare a round vs <a href=\"https:\/\/dycarbonfiber.com\/cs\/products-03\/carbon-fiber-tubes\/\">\u010dtvercov\u00e1 trubka z uhl\u00edkov\u00fdch vl\u00e1ken<\/a>, the biggest difference is how the load moves through the shape. A round tube spreads stress evenly around the whole section. That helps it resist bending very well.<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">A square tube works differently. The flat walls tend to bend more easily. The corners do not carry load evenly, and they can become weak spots under stress. So even if both tubes use the same carbon fiber, their structural performance is not equal.<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">In real testing, round tubes almost always show higher stiffness for the same weight. This is not a small difference either. In some cases, the gap is large enough to fail a design requirement. Shape is not just a design detail. It directly affects how the part works.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-28d79c6 e-flex e-con-boxed e-con e-parent\" data-id=\"28d79c6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4beaa86 elementor-widget elementor-widget-text-editor\" data-id=\"4beaa86\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"pultrusion-vs-pull-winding-carbon-fiber-tubes-why\" class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_&amp;]:clear-end text-base first:mt-0\">Pultrusion vs Pull Winding Carbon Fiber Tubes: Why Manufacturing Process Changes Modulus<\/h2><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">The manufacturing process also played a role in this case. The square tube was made using pultrusion. The round tube was made using pull winding.<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Pultruded carbon fiber tubes mostly have fibers running straight along the length. This helps with tensile strength, but it does not help much with bending or torsion. Pull winding adds fibers at angles. This gives better support when the tube bends or twists.<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Many engineers look at modulus values and assume they come only from the fiber type. That is not true in practice. The carbon fiber tube manufacturing process changes how the fibers are placed, and that changes how the tube behaves under load.<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">So when comparing pultrusion vs pull winding, you are not just comparing processes. You are comparing two different structural behaviors.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1da5ea6 e-flex e-con-boxed e-con e-parent\" data-id=\"1da5ea6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-76eac94 elementor-widget elementor-widget-text-editor\" data-id=\"76eac94\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"youngs-modulus-carbon-fiber-tube-analysis-why-mate\" class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_&amp;]:clear-end text-base first:mt-0\">Young&#8217;s Modulus Carbon Fiber Tube Analysis: Why Material Grade Alone Cannot Solve the Problem<\/h2><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">After the stiffness issue showed up, the first idea was to switch materials. The team considered moving from T300 to T700 or even T800 carbon fiber.<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">On paper, that should increase stiffness. But in testing, the improvement was small. It did not solve the problem.<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">This is because Young&#8217;s modulus in a carbon fiber tube depends on more than just fiber grade. If the shape and wall thickness stay the same, the gain is limited. A high modulus carbon fiber tube only works well when the structure allows the fibers to carry load efficiently.<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">In this case, the square shape and thin walls limited what the material could do. Changing fiber grade alone could not fix that.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-81a28f5 e-flex e-con-boxed e-con e-parent\" data-id=\"81a28f5\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-726f5c6 elementor-widget elementor-widget-text-editor\" data-id=\"726f5c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2 id=\"how-aerospace-engineers-increase-carbon-fiber-tube\" class=\"font-editorial font-bold mb-2 mt-4 [.has-inline-images_&amp;]:clear-end text-base first:mt-0\">How Aerospace Engineers Increase Carbon Fiber Tube Modulus Through Design Optimization<\/h2><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">The team had to change direction. Instead of focusing only on material, they looked at the full design. They adjusted fiber angles, added thickness in key areas, and tested different layups.<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">In some versions, they even moved away from a strict square shape. Slight changes in geometry made a big difference in stiffness.<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Testing and validation were critical here. Each change was checked with real data, not just simulation. This helped avoid more delays.<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">An experienced manufacturer also helped refine the process. By adjusting how fibers were placed during production, they improved performance without adding too much weight. This kind of collaboration often makes the difference between passing and failing a test.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9e733e8 e-flex e-con-boxed e-con e-parent\" data-id=\"9e733e8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-31ab610 elementor-widget elementor-widget-text-editor\" data-id=\"31ab610\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Shrnut\u00ed<\/h2><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">Stiffness in a <a href=\"https:\/\/dycarbonfiber.com\/cs\/products-03\/carbon-fiber-tubes\/\">trubka z uhl\u00edkov\u00fdch vl\u00e1ken<\/a> does not come from material alone. Shape, process, and fiber layout all matter, and sometimes they matter more than fiber grade. Moving from T300 to T700 or T800 will not fix a design that has geometry or manufacturing limits.<\/p><p class=\"my-2 [&amp;+p]:mt-4 [&amp;_strong:has(+br)]:inline-block [&amp;_strong:has(+br)]:pb-2\">In aerospace projects, it is easy to assume that better material means better performance. But real test results often show something else. When engineers work closely with composite manufacturers and focus on the full structure, they can find the real cause of the problem and choose the right <a href=\"https:\/\/dycarbonfiber.com\/cs\/products-03\/carbon-fiber-tubes\/\">\u010dtvercov\u00e1 trubka z uhl\u00edkov\u00fdch vl\u00e1ken<\/a> design based on actual performance, not assumptions.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-207f0a48 e-flex e-con-boxed e-con e-parent\" data-id=\"207f0a48\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3557aaf4 elementor-widget elementor-widget-heading\" data-id=\"3557aaf4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Hled\u00e1te v\u00fdrobky z uhl\u00edkov\u00fdch vl\u00e1ken? Nev\u00e1hejte n\u00e1s kontaktovat!<\/h3>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-23360964 e-flex e-con-boxed e-con e-parent\" data-id=\"23360964\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6c9f511c elementor-button-align-stretch elementor-widget elementor-widget-form\" data-id=\"6c9f511c\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;step_next_label&quot;:&quot;Next&quot;,&quot;step_previous_label&quot;:&quot;Previous&quot;,&quot;button_width&quot;:&quot;100&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;}\" data-widget_type=\"form.default\">\n\t\t\t\t\t\t\t<form class=\"elementor-form\" method=\"post\" name=\"New Form\" aria-label=\"Nov\u00fd formul\u00e1\u0159\" action=\"\">\r\n\t\t\t<input type=\"hidden\" name=\"post_id\" value=\"5228\"\/>\r\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"6c9f511c\"\/>\r\n\t\t\t<input type=\"hidden\" name=\"referer_title\" value=\"\" \/>\r\n\r\n\t\t\t\r\n\t\t\t<div class=\"elementor-form-fields-wrapper elementor-labels-\">\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-name elementor-col-100\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-name\" class=\"elementor-field-label elementor-screen-only\">\r\n\t\t\t\t\t\t\t\tN\u00e1zev\t\t\t\t\t\t\t<\/label>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[name]\" id=\"form-field-name\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"N\u00e1zev\">\r\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-email elementor-col-100 elementor-field-required\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-email\" class=\"elementor-field-label elementor-screen-only\">\r\n\t\t\t\t\t\t\t\tE-mail\t\t\t\t\t\t\t<\/label>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"E-mail\" required=\"required\">\r\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-message elementor-col-100\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-message\" class=\"elementor-field-label elementor-screen-only\">\r\n\t\t\t\t\t\t\t\tZpr\u00e1va\t\t\t\t\t\t\t<\/label>\r\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-sm\" name=\"form_fields[message]\" id=\"form-field-message\" rows=\"4\" placeholder=\"Zpr\u00e1va\"><\/textarea>\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-recaptcha_v3 elementor-field-group elementor-column elementor-field-group-field_cc31317 elementor-col-100 recaptcha_v3-bottomright\">\r\n\t\t\t\t\t<div class=\"elementor-field\" id=\"form-field-field_cc31317\"><div class=\"elementor-g-recaptcha\" data-sitekey=\"6LeOu-QrAAAAAKHMdml-qaBJme6BIOZ7Jx5-ET2R\" data-type=\"v3\" data-action=\"Form\" data-badge=\"bottomright\" data-size=\"invisible\"><\/div><\/div>\t\t\t\t<\/div>\r\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-100 e-form__buttons\">\r\n\t\t\t\t\t<button class=\"elementor-button elementor-size-sm\" type=\"submit\">\r\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Odeslat<\/span>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\r\n\t\t\t\t\t<\/button>\r\n\t\t\t\t<\/div>\r\n\t\t\t<\/div>\r\n\t\t<input type=\"hidden\" name=\"trp-form-language\" value=\"cs\"\/><\/form>\r\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Why Does a Carbon Fiber Square Tube Show Lower Stiffness Than a Round Tube? Table of Contents Real Test Results from an Aerospace Project In one aerospace project I worked on, a team ran into a problem that did not make sense at first. They tested a square carbon fiber tube and a round one. [&hellip;]<\/p>","protected":false},"author":1,"featured_media":5245,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5228","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-about-carbon"],"_links":{"self":[{"href":"https:\/\/dycarbonfiber.com\/cs\/wp-json\/wp\/v2\/posts\/5228","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dycarbonfiber.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dycarbonfiber.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dycarbonfiber.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dycarbonfiber.com\/cs\/wp-json\/wp\/v2\/comments?post=5228"}],"version-history":[{"count":12,"href":"https:\/\/dycarbonfiber.com\/cs\/wp-json\/wp\/v2\/posts\/5228\/revisions"}],"predecessor-version":[{"id":5254,"href":"https:\/\/dycarbonfiber.com\/cs\/wp-json\/wp\/v2\/posts\/5228\/revisions\/5254"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dycarbonfiber.com\/cs\/wp-json\/wp\/v2\/media\/5245"}],"wp:attachment":[{"href":"https:\/\/dycarbonfiber.com\/cs\/wp-json\/wp\/v2\/media?parent=5228"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dycarbonfiber.com\/cs\/wp-json\/wp\/v2\/categories?post=5228"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dycarbonfiber.com\/cs\/wp-json\/wp\/v2\/tags?post=5228"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}