{"id":21742,"date":"2025-11-10T14:34:51","date_gmt":"2025-11-10T13:34:51","guid":{"rendered":"https:\/\/shimadzu-testing.com\/?p=21742"},"modified":"2025-11-12T13:46:07","modified_gmt":"2025-11-12T12:46:07","slug":"fracture-observation-in-glass-ring-on-ring-bending-tests-using-hpv-x3","status":"publish","type":"post","link":"https:\/\/shimadzu-testing.com\/cz\/know-how\/high-speed-video-camera\/fracture-observation-in-glass-ring-on-ring-bending-tests-using-hpv-x3\/","title":{"rendered":"Pozorov\u00e1n\u00ed lom\u016f p\u0159i zkou\u0161k\u00e1ch ohybu sklen\u011bn\u00e9ho krou\u017eku na krou\u017eku pomoc\u00ed HPV-X3"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"21742\" class=\"elementor elementor-21742\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4e15197 e-flex e-con-boxed e-con e-parent\" data-id=\"4e15197\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-583ac24 elementor-widget elementor-widget-text-editor\" data-id=\"583ac24\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>V\u00fdhody pro u\u017eivatele<\/strong><\/p>\n<ul>\n<li>Vysokorychlostn\u00ed videokamera HPV-X3 m\u00e1 t\u0159ikr\u00e1t vy\u0161\u0161\u00ed rozli\u0161en\u00ed ne\u017e b\u011b\u017en\u00e9 modely, co\u017e umo\u017e\u0148uje vysokorychlostn\u00ed sn\u00edm\u00e1n\u00ed s vysok\u00fdm rozli\u0161en\u00edm.<\/li>\n<li>HPV-X3 umo\u017e\u0148uje pozorovat vznik a \u0161\u00ed\u0159en\u00ed trhlin ve skle a z\u00e1rove\u0148 umo\u017e\u0148uje vysokorychlostn\u00ed sn\u00edm\u00e1n\u00ed s maxim\u00e1ln\u00ed rychlost\u00ed 20 Mfps.<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cfb9b86 e-con-full e-flex e-con e-child\" data-id=\"cfb9b86\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-840a230 e-con-full e-flex e-con e-child\" data-id=\"840a230\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-84f6cad elementor-widget elementor-widget-text-editor\" data-id=\"84f6cad\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>\u00davod<\/strong><br \/>V posledn\u00edch letech se sklo pou\u017e\u00edv\u00e1 v nejr\u016fzn\u011bj\u0161\u00edch oblastech.<br \/>v\u010detn\u011b elektroniky, automobil\u016f a dal\u0161\u00edch za\u0159\u00edzen\u00ed.<br \/>architektura. Nap\u0159\u00edklad obrazovky chytr\u00fdch telefon\u016f a \u010deln\u00ed skla automobil\u016f vy\u017eaduj\u00ed vysokou pevnost skla, proto se k hodnocen\u00ed pevnosti pou\u017e\u00edvaj\u00ed t\u0159\u00edbodov\u00e9 zkou\u0161ky ohybem, \u010dty\u0159bodov\u00e9 zkou\u0161ky ohybem a zkou\u0161ky ohybem krou\u017eek na krou\u017eek. U t\u0159\u00edbodov\u00fdch a \u010dty\u0159bodov\u00fdch ohybov\u00fdch zkou\u0161ek z\u00e1vis\u00ed v\u00fdsledky na stavu okraj\u016f, proto\u017ee trhliny na okraji zku\u0161ebn\u00edho kusu se mohou st\u00e1t zdrojem lomu. Naproti tomu zkou\u0161ka ohybem krou\u017eek na krou\u017eek je pova\u017eov\u00e1na za dvouosou \u010dty\u0159bodovou zkou\u0161ku ohybem a m\u016f\u017ee vyhodnotit \"pevnost v rovin\u011b\" skla bez vlivu okraj\u016f. Tato zkou\u0161ka je specifikov\u00e1na v norm\u011b ASTM C1499 a vyhovuj\u00edc\u00ed nebo nevyhovuj\u00edc\u00ed posouzen\u00ed se ur\u010duje pozorov\u00e1n\u00edm p\u016fvodu lomu na vzorku s p\u00e1skou p\u0159ilo\u017eenou na tlakov\u00e9 stran\u011b. Proto je d\u016fle\u017eit\u00e9 nejen prov\u00e9st zkou\u0161ku, ale tak\u00e9 potvrdit p\u016fvod lomu. V p\u0159edchoz\u00ed zpr\u00e1v\u011b1) byl pomoc\u00ed vysokorychlostn\u00ed videokamery HPV-X2 pozorov\u00e1n proces lomu zes\u00edlen\u00e9ho skla p\u0159i zkou\u0161ce ohybem krou\u017eku na krou\u017eku. Nov\u011b vyvinut\u00e1 kamera HPV-X3 (obr. 1) m\u00e1 t\u0159ikr\u00e1t vy\u0161\u0161\u00ed rozli\u0161en\u00ed ne\u017e kamera HPV-X2, co\u017e umo\u017e\u0148uje detailn\u011bj\u0161\u00ed pozorov\u00e1n\u00ed trhlin ve skle.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6ef3a36 e-con-full e-flex e-con e-child\" data-id=\"6ef3a36\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5e2dd79 elementor-widget elementor-widget-image\" data-id=\"5e2dd79\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/Gruppe-2013.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Gruppe 2013\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjE4MzQsInVybCI6Imh0dHBzOlwvXC9zaGltYWR6dS10ZXN0aW5nLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL0dydXBwZS0yMDEzLmpwZyJ9\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1114\" height=\"1404\" src=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/Gruppe-2013.jpg\" class=\"attachment-full size-full wp-image-21834\" alt=\"\" \/>\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<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6814408 e-grid e-con-full e-con e-child\" data-id=\"6814408\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-44ed5ba elementor-widget elementor-widget-image\" data-id=\"44ed5ba\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/fracture-observation-in-glass-high-speed-video-camera-shimadzu-5.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"fracture-observation-in-glass-high-speed-video-camera-shimadzu\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjE3NzEsInVybCI6Imh0dHBzOlwvXC9zaGltYWR6dS10ZXN0aW5nLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL2ZyYWN0dXJlLW9ic2VydmF0aW9uLWluLWdsYXNzLWhpZ2gtc3BlZWQtdmlkZW8tY2FtZXJhLXNoaW1hZHp1LTUuanBnIn0%3D\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"768\" height=\"656\" src=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/fracture-observation-in-glass-high-speed-video-camera-shimadzu-5-768x656.jpg\" class=\"attachment-medium_large size-medium_large wp-image-21771\" alt=\"\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9c37748 elementor-widget elementor-widget-image\" data-id=\"9c37748\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/test-section-high-speed-video-camera-shimadzu-5.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"test-section-high-speed-video-camera-shimadzu\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjE3NzMsInVybCI6Imh0dHBzOlwvXC9zaGltYWR6dS10ZXN0aW5nLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL3Rlc3Qtc2VjdGlvbi1oaWdoLXNwZWVkLXZpZGVvLWNhbWVyYS1zaGltYWR6dS01LmpwZyJ9\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"768\" height=\"665\" src=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/test-section-high-speed-video-camera-shimadzu-5-768x665.jpg\" class=\"attachment-medium_large size-medium_large wp-image-21773\" alt=\"\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-712994d elementor-widget elementor-widget-text-editor\" data-id=\"712994d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Syst\u00e9m m\u011b\u0159en\u00ed<\/strong><br \/>Lomov\u00e9 chov\u00e1n\u00ed p\u0159i zkou\u0161ce ohybem sklen\u011bn\u00e9ho krou\u017eku na krou\u017eku bylo pozorov\u00e1no pomoc\u00ed vysokorychlostn\u00ed videokamery (HPV-X3) a p\u0159\u00edstroje<br \/>p\u0159esn\u00fd univerz\u00e1ln\u00ed zku\u0161ebn\u00ed stroj (AGX-V2). Zku\u0161ebn\u00ed za\u0159\u00edzen\u00ed je uvedeno v tabulce 1 a z\u00e1znam a zku\u0161ebn\u00ed podm\u00ednky jsou podrobn\u011b pops\u00e1ny v tabulce 2. Na obr. 2 a 3 je zobrazeno pozorovac\u00ed za\u0159\u00edzen\u00ed a zku\u0161ebn\u00ed \u00fasek. Vnit\u0159n\u00ed strana zku\u0161ebn\u00edho p\u0159\u00edpravku s op\u011brn\u00fdm krou\u017ekem byla vyhloubena, co\u017e umo\u017enilo pozorovat lom zespodu zku\u0161ebn\u00edho t\u011blesa pomoc\u00ed zrcadla um\u00edst\u011bn\u00e9ho p\u0159\u00edmo pod n\u00edm. K nosn\u00e9mu krou\u017eku byl p\u0159ipevn\u011bn sn\u00edma\u010d zrychlen\u00ed, kter\u00fd zji\u0161\u0165oval zm\u011bny zrychlen\u00ed v okam\u017eiku lomu. To bylo pou\u017eito jako spou\u0161t\u011b\u010d. Krom\u011b toho byla na horn\u00ed stranu zku\u0161ebn\u00edho kusu um\u00edst\u011bna odrazn\u00e1 f\u00f3lie, kter\u00e1 usnadnila pozorov\u00e1n\u00ed \u0161\u00ed\u0159en\u00ed trhliny. Zku\u0161ebn\u00ed kus byl z tvrzen\u00e9ho skla a rychlost zkou\u0161ky byla 5 mm\/min, p\u0159i\u010dem\u017e rychlost z\u00e1znamu byla nastavena na 10 Mfps.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c5c3bed elementor-widget elementor-widget-text-editor\" data-id=\"c5c3bed\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>V\u00fdsledek m\u011b\u0159en\u00ed<\/strong><br \/>Na obr. 4 jsou uvedeny v\u00fdsledky pozorov\u00e1n\u00ed lomu p\u0159i zkou\u0161ce ohybem krou\u017eku na krou\u017eku. Na obr\u00e1zku (2) je vid\u011bt po\u010d\u00e1tek lomu na zat\u011b\u017eovac\u00edm prstenci a d\u00e1le od (3) do (12) lze pozorovat \u0161\u00ed\u0159en\u00ed trhlin, jak se kruh po\u010d\u00e1tku roz\u0161i\u0159uje. Obr. 5 porovn\u00e1v\u00e1 sn\u00edmky po\u0159\u00edzen\u00e9 p\u0159\u00edstrojem HPV-X2 v p\u0159edchoz\u00ed zpr\u00e1v\u011b s nov\u011b po\u0159\u00edzen\u00fdmi sn\u00edmky pomoc\u00ed p\u0159\u00edstroje HPV-X3. Sn\u00edmek z HPV-X3 na obr. 5 je zv\u011bt\u0161en\u00fd pohled na oblast trhliny z obr. 4(4). Podobn\u011b sn\u00edmek z HPV-X2 na obr. 5 je zv\u011bt\u0161en\u00fd pohled na oblast trhliny z p\u0159edchoz\u00ed zpr\u00e1vy. Na sn\u00edmku HPV-X2 je obrys \u010dern\u00e9ho kruhu v m\u00edst\u011b trhliny pon\u011bkud nejasn\u00fd. Naproti tomu sn\u00edmek HPV-X3 umo\u017e\u0148uje identifikovat trhliny vyza\u0159uj\u00edc\u00ed z m\u00edsta vzniku lomu a je vid\u011bt, \u017ee lep\u0161\u00ed rozli\u0161en\u00ed umo\u017e\u0148uje detailn\u011bj\u0161\u00ed pozorov\u00e1n\u00ed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13117f3 elementor-widget elementor-widget-image\" data-id=\"13117f3\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/fracture-observation-in-the-ringon-ringbending-test-shimadzu-5.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"fracture-observation-in-the-ringon-ringbending-test-shimadzu\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjE3NzIsInVybCI6Imh0dHBzOlwvXC9zaGltYWR6dS10ZXN0aW5nLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL2ZyYWN0dXJlLW9ic2VydmF0aW9uLWluLXRoZS1yaW5nb24tcmluZ2JlbmRpbmctdGVzdC1zaGltYWR6dS01LmpwZyJ9\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"515\" src=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/fracture-observation-in-the-ringon-ringbending-test-shimadzu-5-1024x515.jpg\" class=\"attachment-large size-large wp-image-21772\" alt=\"\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9001041 elementor-widget elementor-widget-image\" data-id=\"9001041\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/fig4-5.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"fig4\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjE3NzAsInVybCI6Imh0dHBzOlwvXC9zaGltYWR6dS10ZXN0aW5nLmNvbVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNVwvMTFcL2ZpZzQtNS5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"591\" src=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/fig4-5-1024x591.jpg\" class=\"attachment-large size-large wp-image-21770\" alt=\"\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\"><\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3655f6d elementor-widget elementor-widget-spacer\" data-id=\"3655f6d\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ed93745 elementor-widget elementor-widget-text-editor\" data-id=\"ed93745\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Z\u00e1v\u011br<\/strong><br \/>Chov\u00e1n\u00ed tvrzen\u00e9ho skla p\u0159i zkou\u0161ce ohybem v krou\u017eku bylo sledov\u00e1no pomoc\u00ed vysokorychlostn\u00edho p\u0159\u00edstroje HPV-X3.<br \/>videokamera. Rychlost \u0161\u00ed\u0159en\u00ed trhlin ve skle je velmi vysok\u00e1, a proto je pro tato pozorov\u00e1n\u00ed vhodn\u00e1 vysokorychlostn\u00ed videokamera s rychlost\u00ed z\u00e1znamu p\u0159es 5 Mfps. Rozli\u0161en\u00ed kamery HPV-X3 bylo ve srovn\u00e1n\u00ed s b\u011b\u017enou kamerou HPV-X2 zv\u00fd\u0161eno trojn\u00e1sobn\u011b, co\u017e umo\u017e\u0148uje z\u0159eteln\u011bj\u0161\u00ed zobrazen\u00ed trhlin. T\u00edmto zp\u016fsobem m\u016f\u017ee HPV-X3 p\u0159isp\u011bt k v\u00fdvoji skla.<\/p>\n<p>\u00a0<\/p>\n<p><strong>Odkazy<\/strong><br \/>1) Pozorov\u00e1n\u00ed lomu skla p\u0159i zkou\u0161ce ohybem krou\u017eku na krou\u017eku, Application News No. V30<\/p>\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-167ca2b e-flex e-con-boxed e-con e-parent\" data-id=\"167ca2b\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2bb8546 elementor-widget elementor-widget-heading\" data-id=\"2bb8546\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">St\u00e1hnout<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b6d12fc downloads-liste elementor-widget elementor-widget-text-editor\" data-id=\"b6d12fc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul>\n<li><a href=\"https:\/\/shimadzu-testing.com\/wp-content\/uploads\/2025\/11\/fracture-observation-in-glas-ring-on-ring-bending-tests-using-hpv-x3.pdf\">Pou\u017eit\u00ed: Pozorov\u00e1n\u00ed lom\u016f p\u0159i zkou\u0161k\u00e1ch ohybu sklen\u011bn\u00e9ho krou\u017eku na krou\u017eku pomoc\u00ed HPV-X3<\/a><\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d82bcb5 elementor-widget elementor-widget-spacer\" data-id=\"d82bcb5\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\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-dd908fe e-flex e-con-boxed e-con e-parent\" data-id=\"dd908fe\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>P\u0159i navrhov\u00e1n\u00ed v\u00fdrobk\u016f je d\u016fle\u017eit\u00e9 zn\u00e1t vlastnosti materi\u00e1l\u016f.<\/p>","protected":false},"author":397,"featured_media":21769,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[340,367],"tags":[],"class_list":["post-21742","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-high-speed-video-camera","category-hpv-x3"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.4 - 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