{"id":685,"date":"2026-02-13T09:40:25","date_gmt":"2026-02-13T01:40:25","guid":{"rendered":"https:\/\/www.ampouletest.com\/?p=685"},"modified":"2026-02-13T09:40:26","modified_gmt":"2026-02-13T01:40:26","slug":"three-point-bending-flexural-test","status":"publish","type":"post","link":"https:\/\/www.ampouletest.com\/cs\/three-point-bending-flexural-test","title":{"rendered":"T\u0159\u00edbodov\u00e1 ohybov\u00e1 zkou\u0161ka: Porozum\u011bn\u00ed z\u00e1kladn\u00edm princip\u016fm a aplikac\u00edm"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Na str\u00e1nk\u00e1ch <strong>t\u0159\u00edbodov\u00e1 zkou\u0161ka ohybem<\/strong> je kl\u00ed\u010dovou zkou\u0161kou v materi\u00e1lov\u00e9m in\u017een\u00fdrstv\u00ed, kter\u00e1 se \u010dasto pou\u017e\u00edv\u00e1 k hodnocen\u00ed pevnosti, pru\u017enosti a odolnosti materi\u00e1l\u016f p\u0159i ohybov\u00e9m nam\u00e1h\u00e1n\u00ed. Tato zkou\u0161ka je obzvl\u00e1\u0161t\u011b d\u016fle\u017eit\u00e1 v oblastech, jako je balen\u00ed, farmaceutick\u00fd pr\u016fmysl a zkou\u0161en\u00ed materi\u00e1l\u016f, kde je t\u0159eba posoudit trvanlivost a vlastnosti materi\u00e1l\u016f, jako jsou lepenka, plasty a sklo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tento \u010dl\u00e1nek se bude zab\u00fdvat z\u00e1kladn\u00edmi principy <strong>t\u0159\u00edbodov\u00e1 zkou\u0161ka ohybem<\/strong>, se zam\u011b\u0159en\u00edm na jeho vyu\u017eit\u00ed p\u0159i stanovov\u00e1n\u00ed pevnosti materi\u00e1l\u016f a na to, jak se integruje s <strong>ISO 9187<\/strong> za \u00fa\u010delem zaji\u0161t\u011bn\u00ed integrity v\u00fdrobku, zejm\u00e9na v souvislosti s testov\u00e1n\u00edm injek\u010dn\u00edch st\u0159\u00edka\u010dek.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.ampouletest.com\/cs\/\" target=\"_blank\" rel=\" noreferrer noopener\"><img fetchpriority=\"high\" decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/www.ampouletest.com\/wp-content\/uploads\/2026\/02\/Three-Point-Bending-Flexural-Test-Understanding-the-Key-Principles-and-Applications.webp\" alt=\"T\u0159\u00edbodov\u00e1 ohybov\u00e1 zkou\u0161ka \u2013 porozum\u011bn\u00ed z\u00e1kladn\u00edm princip\u016fm a aplikac\u00edm\" class=\"wp-image-687\" srcset=\"https:\/\/www.ampouletest.com\/wp-content\/uploads\/2026\/02\/Three-Point-Bending-Flexural-Test-Understanding-the-Key-Principles-and-Applications.webp 600w, https:\/\/www.ampouletest.com\/wp-content\/uploads\/2026\/02\/Three-Point-Bending-Flexural-Test-Understanding-the-Key-Principles-and-Applications-300x300.webp 300w, https:\/\/www.ampouletest.com\/wp-content\/uploads\/2026\/02\/Three-Point-Bending-Flexural-Test-Understanding-the-Key-Principles-and-Applications-150x150.webp 150w, https:\/\/www.ampouletest.com\/wp-content\/uploads\/2026\/02\/Three-Point-Bending-Flexural-Test-Understanding-the-Key-Principles-and-Applications-12x12.webp 12w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Zku\u0161ebn\u00ed za\u0159\u00edzen\u00ed pro m\u011b\u0159en\u00ed lomov\u00e9 s\u00edly podle normy ISO 9187: Nezbytn\u00fd n\u00e1stroj pro testov\u00e1n\u00ed injek\u010dn\u00edch st\u0159\u00edka\u010dek<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ISO 9187<\/strong> jedn\u00e1 se o soubor mezin\u00e1rodn\u00edch norem, kter\u00fd stanovuje specifikace pro zkou\u0161en\u00ed ampul\u00ed a injek\u010dn\u00edch st\u0159\u00edka\u010dek, p\u0159i\u010dem\u017e se zam\u011b\u0159uje zejm\u00e9na na jejich pevnost v tahu. <strong>Zku\u0161ebn\u00ed za\u0159\u00edzen\u00ed pro m\u011b\u0159en\u00ed p\u0159etr\u017en\u00e9 s\u00edly<\/strong>, jako nap\u0159\u00edklad <strong>p\u0159\u00edstroj pro m\u011b\u0159en\u00ed pevnosti sklen\u011bn\u00fdch ampul\u00ed v tahu<\/strong>, hraje kl\u00ed\u010dovou roli p\u0159i posuzov\u00e1n\u00ed odolnosti injek\u010dn\u00edch st\u0159\u00edka\u010dek a ampul\u00ed p\u0159i nam\u00e1h\u00e1n\u00ed. Tyto zkou\u0161ky zaji\u0161\u0165uj\u00ed, \u017ee injek\u010dn\u00ed st\u0159\u00edka\u010dky funguj\u00ed spr\u00e1vn\u011b a bez poruchy odol\u00e1vaj\u00ed tlak\u016fm vznikaj\u00edc\u00edm p\u0159i l\u00e9ka\u0159sk\u00e9m pou\u017eit\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pro <strong>t\u0159\u00edbodov\u00e1 zkou\u0161ka ohybem<\/strong>, tato metodika se zam\u011b\u0159uje na p\u016fsoben\u00ed s\u00edly ve st\u0159edu zku\u0161ebn\u00edho t\u011blesa, kter\u00e9 je podep\u0159eno ve dvou dal\u0161\u00edch bodech. Tato zku\u0161ebn\u00ed metoda poskytuje informace o chov\u00e1n\u00ed materi\u00e1lu p\u0159i p\u016fsoben\u00ed ohybov\u00fdch sil, kter\u00e9 jsou podobn\u00e9 sil\u00e1m p\u016fsob\u00edc\u00edm p\u0159i <strong>ISO 9187<\/strong> testy injek\u010dn\u00edch st\u0159\u00edka\u010dek.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Jak funguje t\u0159\u00edbodov\u00e1 zkou\u0161ka ohybem<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Na str\u00e1nk\u00e1ch <strong>t\u0159\u00edbodov\u00e1 zkou\u0161ka ohybem<\/strong> Obvykle spo\u010d\u00edv\u00e1 v p\u016fsoben\u00ed s\u00edly na st\u0159ed zku\u0161ebn\u00edho vzorku materi\u00e1lu, kter\u00fd je podep\u0159en na obou konc\u00edch. Zat\u00ed\u017een\u00ed se postupn\u011b zvy\u0161uje, dokud nedojde k lomu materi\u00e1lu nebo k jeho deformaci do ur\u010dit\u00e9 m\u00edry, p\u0159i\u010dem\u017e se zaznamen\u00e1vaj\u00ed \u00fadaje o s\u00edle pot\u0159ebn\u00e9 k dosa\u017een\u00ed takov\u00e9 deformace. Tato zkou\u0161ka se b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 u materi\u00e1l\u016f, jako jsou kovy, plasty a kompozity, ale hraje tak\u00e9 kl\u00ed\u010dovou roli p\u0159i zkou\u0161en\u00ed materi\u00e1l\u016f, jako je lepenka nebo d\u0159evovl\u00e1knit\u00e1 deska pou\u017e\u00edvan\u00e1 v obalov\u00e9m pr\u016fmyslu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pevnost v ohybu a modul pru\u017enosti<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Na str\u00e1nk\u00e1ch <strong>pevnost v ohybu<\/strong> je schopnost materi\u00e1lu odol\u00e1vat deformaci p\u0159i p\u016fsoben\u00ed ohybov\u00e9ho nap\u011bt\u00ed, zat\u00edmco <strong>modul pru\u017enosti v ohybu<\/strong> m\u011b\u0159\u00ed tuhost materi\u00e1lu p\u0159i tomto zat\u00ed\u017een\u00ed.<\/li>\n\n\n\n<li>P\u0159i testov\u00e1n\u00ed <strong>lepenka<\/strong>, nap\u0159\u00edklad ten <strong>t\u0159\u00edbodov\u00e1 zkou\u0161ka ohybem<\/strong> m\u016f\u017ee ur\u010dit, jak dob\u0159e se materi\u00e1l bude chovat v podm\u00ednk\u00e1ch, kdy m\u016f\u017ee b\u00fdt b\u011bhem pou\u017e\u00edv\u00e1n\u00ed oh\u00fdb\u00e1n nebo stla\u010dov\u00e1n, nap\u0159\u00edklad v obalech.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Aplikace s\u00edly<\/strong>: S\u00edla se p\u016fsob\u00ed na st\u0159ed vzorku a m\u011b\u0159\u00ed se pr\u016fhyb ve st\u0159edu. Pevnost v ohybu se vypo\u010d\u00edt\u00e1 z maxim\u00e1ln\u00edho zat\u00ed\u017een\u00ed p\u0159ed poru\u0161en\u00edm a na z\u00e1klad\u011b pozorov\u00e1n\u00ed pr\u016fhybu se posuzuje chov\u00e1n\u00ed materi\u00e1lu p\u0159i nam\u00e1h\u00e1n\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Souvislost s testov\u00e1n\u00edm injek\u010dn\u00edch st\u0159\u00edka\u010dek: Porozum\u011bn\u00ed lomov\u00e9 s\u00edle a odporu p\u0159i klouz\u00e1n\u00ed<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V souvislosti s <strong>zkou\u0161ka t\u011bsnosti injek\u010dn\u00edch st\u0159\u00edka\u010dek<\/strong>, z\u00e1sady, na nich\u017e je zalo\u017eeno <strong>t\u0159\u00edbodov\u00e1 zkou\u0161ka ohybem<\/strong> maj\u00ed spole\u010dn\u00e9 rysy s <strong>s\u00edly pot\u0159ebn\u00e9 k pohybu p\u00edstu<\/strong> v injek\u010dn\u00edch st\u0159\u00edka\u010dk\u00e1ch. Testov\u00e1n\u00ed <strong>s\u00edla pot\u0159ebn\u00e1 k pohybu p\u00edstu<\/strong> (tak\u00e9 ozna\u010dovan\u00e9 jako <strong>uvoln\u011bn\u00e1 s\u00edla<\/strong> a <strong>kluzn\u00e1 s\u00edla<\/strong>) zaji\u0161\u0165uje, \u017ee injek\u010dn\u00ed st\u0159\u00edka\u010dka bude spolehliv\u011b fungovat v re\u00e1ln\u00fdch podm\u00ednk\u00e1ch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ISO 9187-1<\/strong> a <strong>ISO 9187-2<\/strong> normy obsahuj\u00ed konkr\u00e9tn\u00ed pokyny pro testov\u00e1n\u00ed <strong>zlomov\u00e1 s\u00edla<\/strong> injek\u010dn\u00edch st\u0159\u00edka\u010dek, v\u010detn\u011b:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Na str\u00e1nk\u00e1ch <strong>brzdn\u00e1 s\u00edla<\/strong> se stanov\u00ed tak, \u017ee se na p\u00edst injek\u010dn\u00ed st\u0159\u00edka\u010dky vyv\u00edj\u00ed tlak, dokud nen\u00ed vytla\u010den z t\u011bla, podobn\u011b jako p\u0159i ohybov\u00fdch nap\u011bt\u00edch p\u016fsob\u00edc\u00edch v <strong>zkou\u0161ky ohybem<\/strong>.<\/li>\n\n\n\n<li>Na str\u00e1nk\u00e1ch <strong>kluzn\u00e1 s\u00edla<\/strong> ur\u010duje s\u00edlu pot\u0159ebnou k udr\u017een\u00ed pohybu p\u00edstu pot\u00e9, co byl tento pohyb zah\u00e1jen. To je d\u016fle\u017eit\u00e9 pro zaji\u0161t\u011bn\u00ed plynul\u00e9ho chodu injek\u010dn\u00edch st\u0159\u00edka\u010dek a pro to, aby p\u0159i jejich pou\u017e\u00edv\u00e1n\u00ed nevznikal nadm\u011brn\u00fd odpor.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Oba testy se zam\u011b\u0159uj\u00ed na vyhodnocen\u00ed <strong>odolnost materi\u00e1lu nebo sou\u010d\u00e1sti<\/strong> v podm\u00ednk\u00e1ch z\u00e1t\u011b\u017ee a jsou nezbytn\u00e9 pro kontrolu kvality ve v\u00fdrobn\u00edch procesech.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>S\u00edla odtr\u017een\u00ed a kluzn\u00e1 s\u00edla p\u0159i zkou\u0161k\u00e1ch injek\u010dn\u00edch st\u0159\u00edka\u010dek<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159i testov\u00e1n\u00ed injek\u010dn\u00edch st\u0159\u00edka\u010dek, zejm\u00e9na u <strong>p\u0159\u00edstroj pro m\u011b\u0159en\u00ed pevnosti sklen\u011bn\u00fdch ampul\u00ed v tahu<\/strong>, <strong>ISO 9187-2<\/strong> popisuje postupy pro stanoven\u00ed s\u00edly pot\u0159ebn\u00e9 k prolomen\u00ed t\u011bsn\u011bn\u00ed ampule nebo injek\u010dn\u00ed st\u0159\u00edka\u010dky. Tato zkou\u0161ka m\u011b\u0159\u00ed s\u00edly pot\u0159ebn\u00e9 k prolomen\u00ed t\u011bsn\u011bn\u00ed a zaji\u0161\u0165uje, \u017ee za\u0159\u00edzen\u00ed funguje podle o\u010dek\u00e1v\u00e1n\u00ed za b\u011b\u017en\u00fdch podm\u00ednek.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u0159\u00edbodov\u00e1 zkou\u0161ka ohybem p\u0159i testov\u00e1n\u00ed ampul\u00ed<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Na str\u00e1nk\u00e1ch <strong>zku\u0161ebn\u00ed za\u0159\u00edzen\u00ed pro oh\u00fdb\u00e1n\u00ed ampul\u00ed<\/strong> je ur\u010den k p\u016fsoben\u00ed ohybov\u00e9ho nap\u011bt\u00ed na ampulku a ke stanoven\u00ed <strong>s\u00edla pot\u0159ebn\u00e1 k rozbit\u00ed ampule<\/strong>. Tento test je svou povahou podobn\u00fd testu <strong>t\u0159\u00edbodov\u00e1 zkou\u0161ka ohybem<\/strong>, nebo\u0165 m\u011b\u0159\u00ed, jak materi\u00e1ly reaguj\u00ed na p\u016fsob\u00edc\u00ed nam\u00e1h\u00e1n\u00ed.<\/li>\n\n\n\n<li>Porozum\u011bn\u00ed <strong>kluzn\u00e1 s\u00edla<\/strong> injek\u010dn\u00edch st\u0159\u00edka\u010dek a <strong>ampule<\/strong> je z\u00e1sadn\u00ed pro to, aby za\u0159\u00edzen\u00ed nenarazila na nadm\u011brn\u00fd odpor, kter\u00fd by mohl br\u00e1nit u\u017eivateli v efektivn\u00edm vyu\u017e\u00edv\u00e1n\u00ed produktu.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Z\u00e1v\u011br<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Na str\u00e1nk\u00e1ch <strong>t\u0159\u00edbodov\u00e1 zkou\u0161ka ohybem<\/strong> je nepostradateln\u00fdm n\u00e1strojem pro hodnocen\u00ed pevnosti a trvanlivosti materi\u00e1l\u016f p\u0159i ohybov\u00e9m nam\u00e1h\u00e1n\u00ed, kter\u00fd nach\u00e1z\u00ed uplatn\u011bn\u00ed v mnoha pr\u016fmyslov\u00fdch odv\u011btv\u00edch. V <strong>testov\u00e1n\u00ed injek\u010dn\u00edch st\u0159\u00edka\u010dek<\/strong>, s\u00edly pot\u0159ebn\u00e9 k pohybu p\u00edstu a <strong>zlomov\u00e1 s\u00edla<\/strong> ampule nebo injek\u010dn\u00ed st\u0159\u00edka\u010dky jsou rozhoduj\u00edc\u00edmi faktory p\u0159i ur\u010dov\u00e1n\u00ed kvality v\u00fdrobku. <strong>ISO 9187<\/strong> stanovuje jasn\u00e9 normy pro tyto zkou\u0161ky a zaji\u0161\u0165uje tak, \u017ee injek\u010dn\u00ed st\u0159\u00edka\u010dky a ampule budou v l\u00e9ka\u0159sk\u00fdch a farmaceutick\u00fdch aplikac\u00edch fungovat spolehliv\u011b.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00edky pou\u017eit\u00ed modern\u00edch testovac\u00edch za\u0159\u00edzen\u00ed, jako je nap\u0159\u00edklad <strong>P\u0159\u00edstroj Cell Instruments pro m\u011b\u0159en\u00ed s\u00edly pot\u0159ebn\u00e9 k rozbit\u00ed ampule<\/strong> nebo <strong>P\u0159\u00edstroj pro m\u011b\u0159en\u00ed odporu p\u0159i posuvu injek\u010dn\u00ed st\u0159\u00edka\u010dky<\/strong>, mohou v\u00fdrobci zajistit, aby jejich v\u00fdrobky spl\u0148ovaly nezbytn\u00e9 normy t\u00fdkaj\u00edc\u00ed se bezpe\u010dnosti a funk\u010dnosti. A\u0165 u\u017e jde o <strong>Zkou\u0161ka odtrhov\u00e9 s\u00edly a kluzn\u00e9 s\u00edly<\/strong> nebo posuzov\u00e1n\u00ed <strong>pevnost v ohybu<\/strong> V p\u0159\u00edpad\u011b obalov\u00fdch materi\u00e1l\u016f jsou tyto zkou\u0161ky nezbytn\u00e9 pro v\u00fdrobu vysoce kvalitn\u00edch a spolehliv\u00fdch v\u00fdrobk\u016f.<\/p>","protected":false},"excerpt":{"rendered":"<p>The three point bending flexural test is a crucial test in material science and engineering, often used to evaluate the strength, flexibility, and resistance of materials under bending stress. This test is particularly important in fields such as packaging, pharmaceuticals, and materials testing, where the durability and performance of materials like paperboard, plastics, and glass [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-685","post","type-post","status-publish","format-standard","hentry","category-ampoule-test"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Three Point Bending Flexural Test Understanding the Key Principles and Applications<\/title>\n<meta name=\"description\" content=\"Learn about the three point bending flexural test, key principles, and applications. 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