{"id":109881,"date":"2024-04-18T17:26:38","date_gmt":"2024-04-18T15:26:38","guid":{"rendered":"https:\/\/step-lab.com\/?page_id=109881"},"modified":"2024-04-18T17:26:38","modified_gmt":"2024-04-18T15:26:38","slug":"prova-di-frattura","status":"publish","type":"page","link":"https:\/\/step-lab.com\/it\/prova-di-frattura\/","title":{"rendered":"Prova di Frattura"},"content":{"rendered":"\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-7ly55vme-6518c3bf798ff5af51dc632731ed33d5\">\n.avia-section.av-7ly55vme-6518c3bf798ff5af51dc632731ed33d5{\nbackground-repeat:no-repeat;\nbackground-image:url(https:\/\/step-lab.com\/wp-content\/uploads\/2024\/04\/fracture-test.jpg);\nbackground-position:50% 50%;\nbackground-attachment:scroll;\n}\n<\/style>\n<div id='av_section_1'  class='avia-section av-7ly55vme-6518c3bf798ff5af51dc632731ed33d5 main_color avia-section-default avia-no-border-styling  avia-builder-el-0  el_before_av_section  avia-builder-el-first  av-mini-hide avia-bg-style-scroll container_wrap fullsize'  data-section-bg-repeat='no-repeat'><div class='container av-section-cont-open' ><main  role=\"main\" itemprop=\"mainContentOfPage\"  class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-109881'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-7gs6rxp2-626136cd22778b3638713aabd3a40778\">\n#top .hr.hr-invisible.av-7gs6rxp2-626136cd22778b3638713aabd3a40778{\nheight:400px;\n}\n<\/style>\n<div  class='hr av-7gs6rxp2-626136cd22778b3638713aabd3a40778 hr-invisible  avia-builder-el-1  avia-builder-el-no-sibling '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<\/div><\/div><\/main><!-- close content main element --><\/div><\/div><div id='av_section_2'  class='avia-section av-843vpj86-a7932f5f03f8d18d7a55a56825f45ac4 main_color avia-section-default avia-no-border-styling  avia-builder-el-2  el_after_av_section  el_before_av_section  avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-109881'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-7zsct6dy-04ae5b56e505cb8374b2743299691880 av_one_fifth  avia-builder-el-3  el_before_av_three_fifth  avia-builder-el-first  first flex_column_div  '     ><\/div><div  class='flex_column av-7unq1wuu-292bdc584aca57fdce90f00abedb72b5 av_three_fifth  avia-builder-el-4  el_after_av_one_fifth  el_before_av_one_fifth  flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-losb2b8g-97aa1b0c8ea972e23d9e988107fb7e7f\">\n#top .av-special-heading.av-losb2b8g-97aa1b0c8ea972e23d9e988107fb7e7f{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-losb2b8g-97aa1b0c8ea972e23d9e988107fb7e7f .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-losb2b8g-97aa1b0c8ea972e23d9e988107fb7e7f .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-losb2b8g-97aa1b0c8ea972e23d9e988107fb7e7f av-special-heading-h1  avia-builder-el-5  el_before_av_textblock  avia-builder-el-first '><h1 class='av-special-heading-tag '  itemprop=\"headline\"  ><span class=\"ez-toc-section\" id=\"Che_cose_una_prova_di_frattura\"><\/span>Che cos\u2019\u00e8 una prova di frattura?<span class=\"ez-toc-section-end\"><\/span><\/h1><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-losb26sb-c9113748a33a4509569b7c708016577c\">\n#top .av_textblock_section.av-losb26sb-c9113748a33a4509569b7c708016577c .avia_textblock{\nfont-size:18px;\n}\n\n@media only screen and (min-width: 480px) and (max-width: 767px){ \n#top .av_textblock_section.av-losb26sb-c9113748a33a4509569b7c708016577c .avia_textblock{\nfont-size:18px;\n}\n}\n<\/style>\n<section  class='av_textblock_section av-losb26sb-c9113748a33a4509569b7c708016577c '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>La <strong>prova di resistenza alla frattura<\/strong> \u00e8 una delle pi\u00f9 importanti prove meccaniche volte a comprendere la capacit\u00e0 di un materiale di resistere alla propagazione delle fratture, influenzando cos\u00ec la sua resistenza alla frattura, una pietra miliare della caratterizzazione dei materiali.<\/p>\n<p>Questa guida completa esplora in dettaglio le prove di resistenza alla frattura, illustrandone il significato, le metodologie, gli standard, i vantaggi e le macchine di prova adeguate.<\/p>\n<div id=\"malwarebytes-root\"><\/div>\n<div id=\"malwarebytes-root\"><\/div>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-luqob3a0-a861241578e273f723b130359f25bd55\">\n#top .hr.hr-invisible.av-luqob3a0-a861241578e273f723b130359f25bd55{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-luqob3a0-a861241578e273f723b130359f25bd55 hr-invisible  avia-builder-el-7  el_after_av_textblock  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-6yqp8ok6-13d8c1ec30b766372fae7806d2323ec1 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">PAGE CONTENT<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #a81010;color:#a81010\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #a81010;color:#a81010\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/step-lab.com\/it\/prova-di-frattura\/#Che_cose_una_prova_di_frattura\" >Che cos\u2019\u00e8 una prova di frattura?<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/step-lab.com\/it\/prova-di-frattura\/#Cosa_misura_la_prova_di_frattura\" >Cosa misura la prova di frattura?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/step-lab.com\/it\/prova-di-frattura\/#Qual_e_lo_scopo_delle_prove_di_frattura\" >Qual \u00e8 lo scopo delle prove di frattura?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/step-lab.com\/it\/prova-di-frattura\/#Come_si_esegue_un_test_di_frattura\" >Come si esegue un test di frattura?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/step-lab.com\/it\/prova-di-frattura\/#Norme_popolari_nelle_prove_di_frattura\" >Norme popolari nelle prove di frattura<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/step-lab.com\/it\/prova-di-frattura\/#Macchine_per_prove_di_frattura\" >Macchine per prove di frattura<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<\/div><\/section><\/p><\/div><div  class='flex_column av-rpbi5ee-3c0c1525494954076666d94b55dd5d1a av_one_fifth flex_column_div  '     ><\/div><\/div><\/div><\/div><!-- close content main div --><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-4yovy192-3c0c8dccff6f0f576b369ae3c7b4d1c9\">\n.avia-section.av-4yovy192-3c0c8dccff6f0f576b369ae3c7b4d1c9{\nbackground-color:#f7f7f7;\nbackground-image:unset;\n}\n<\/style>\n<div id='av_section_11'  class='avia-section av-4yovy192-3c0c8dccff6f0f576b369ae3c7b4d1c9 main_color avia-section-default avia-no-border-styling avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-109881'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-4qp2ncie-8b34c96427ac052e8bfd0a0a05532f97 av_one_fifth first flex_column_div  '     ><\/div><div  class='flex_column av-gomuxcm-63c9b6137e039a64410927bb8cdd5fe1 av_three_fifth flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-losb7psx-a3dfc17a733a5e342facff77627a0091\">\n#top .av-special-heading.av-losb7psx-a3dfc17a733a5e342facff77627a0091{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-losb7psx-a3dfc17a733a5e342facff77627a0091 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-losb7psx-a3dfc17a733a5e342facff77627a0091 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-losb7psx-a3dfc17a733a5e342facff77627a0091 av-special-heading-h2'><h2 class='av-special-heading-tag '  itemprop=\"headline\"  ><span class=\"ez-toc-section\" id=\"Cosa_misura_la_prova_di_frattura\"><\/span>Cosa misura la prova di frattura?<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-losf3cdw-8c73ba6ae59d27dcc5d600de8b18ad6a\">\n#top .av_textblock_section.av-losf3cdw-8c73ba6ae59d27dcc5d600de8b18ad6a .avia_textblock{\nfont-size:16px;\n}\n\n@media only screen and (min-width: 480px) and (max-width: 767px){ \n#top .av_textblock_section.av-losf3cdw-8c73ba6ae59d27dcc5d600de8b18ad6a .avia_textblock{\nfont-size:20px;\n}\n}\n<\/style>\n<section  class='av_textblock_section av-losf3cdw-8c73ba6ae59d27dcc5d600de8b18ad6a '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Le prove di resistenza alla frattura rappresentano la valutazione della <strong>resistenza di un materiale alla propagazione delle fratture<\/strong>, sottoponendolo a un carico progressivamente crescente fino alla rottura. L&#8217;innesco della frattura deriva tipicamente da difetti intrinseci del materiale, come graffi, ammaccature o siti di corrosione, che si propagano in fratture critiche che portano al cedimento strutturale. Questi test, spesso condotti insieme a valutazioni di corrosione, fatica o temperature elevate, forniscono preziose indicazioni sulle prestazioni di un materiale in diverse condizioni ambientali.<\/p>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-4hojmct2-49b39de502b228bf82c2971057d9d91f av_one_fifth flex_column_div  '     ><\/div><\/div><\/div><\/div><!-- close content main div --><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-5lytronq-7902364c491fcff9bf3eac699b30f2ee\">\n.avia-section.av-5lytronq-7902364c491fcff9bf3eac699b30f2ee{\nbackground-color:ffffff;\nbackground-image:unset;\n}\n<\/style>\n<div id='av_section_12'  class='avia-section av-5lytronq-7902364c491fcff9bf3eac699b30f2ee main_color avia-section-default avia-no-border-styling avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-109881'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-5eow8dna-afbd5047513430cadb0e8d9f4848d09c av_one_fifth first flex_column_div  '     ><\/div><div  class='flex_column av-5b14vx3q-ad71c9d52a4daf1835be4dc74abb9c77 av_three_fifth flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-losb7fwf-52046d8d0d83b053c54d2013ccea3e15\">\n#top .av-special-heading.av-losb7fwf-52046d8d0d83b053c54d2013ccea3e15{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-losb7fwf-52046d8d0d83b053c54d2013ccea3e15 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-losb7fwf-52046d8d0d83b053c54d2013ccea3e15 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-losb7fwf-52046d8d0d83b053c54d2013ccea3e15 av-special-heading-h2'><h2 class='av-special-heading-tag '  itemprop=\"headline\"  ><span class=\"ez-toc-section\" id=\"Qual_e_lo_scopo_delle_prove_di_frattura\"><\/span>Qual \u00e8 lo scopo delle prove di frattura?<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-56ongf6e-d9e381bb01c738bf764b7408edac29e3\">\n#top .av_textblock_section.av-56ongf6e-d9e381bb01c738bf764b7408edac29e3 .avia_textblock{\nfont-size:16px;\n}\n\n@media only screen and (min-width: 480px) and (max-width: 767px){ \n#top .av_textblock_section.av-56ongf6e-d9e381bb01c738bf764b7408edac29e3 .avia_textblock{\nfont-size:20px;\n}\n}\n<\/style>\n<section  class='av_textblock_section av-56ongf6e-d9e381bb01c738bf764b7408edac29e3 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>I test di resistenza alla frattura offrono una visione approfondita dell&#8217;<strong>integrit\u00e0<\/strong> strutturale e della <strong>durata <\/strong> di un materiale, fondamentale in diverse applicazioni industriali. Un materiale che presenta un&#8217;elevata resistenza alla frattura indica una maggiore opposizione alla propagazione delle fratture, indicativa di una tolleranza ai danni e di una resistenza alla fatica superiori. Di conseguenza, questi test svolgono un ruolo cruciale nella selezione dei materiali, nell&#8217;ottimizzazione della progettazione e nel garantire la sicurezza operativa in una miriade di discipline ingegneristiche.<\/p>\n<ol>\n<li>Determinare la <strong>sicurezza <\/strong> del materiale.<\/li>\n<li>Determinare la <strong>durata <\/strong> di un materiale.<\/li>\n<li>Risparmio sui costi grazie alla riduzione della <strong>manutenzione preventiva<\/strong>.<\/li>\n<\/ol>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-50jgx6qe-d258a4dd1e23188209c99d2b71a1cc68 av_one_fifth flex_column_div  '     ><\/div><\/div><\/div><\/div><!-- close content main div --><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-6cetajpy-12a74a66ceb915dd0e0e5a8391e6e45c\">\n.avia-section.av-6cetajpy-12a74a66ceb915dd0e0e5a8391e6e45c{\nbackground-color:#f7f7f7;\nbackground-image:unset;\n}\n<\/style>\n<div id='av_section_13'  class='avia-section av-6cetajpy-12a74a66ceb915dd0e0e5a8391e6e45c main_color avia-section-default avia-no-border-styling avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-109881'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-66g3jst2-31970ed085e5bba4912d1986d1537461 av_one_fifth first flex_column_div  '     ><\/div><div  class='flex_column av-63i7dady-3ee9a68deef4bda0c7a4a60ab3236165 av_three_fifth flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-losb736l-8d69cfab23e5b0ae1a19af3123d8f7fd\">\n#top .av-special-heading.av-losb736l-8d69cfab23e5b0ae1a19af3123d8f7fd{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-losb736l-8d69cfab23e5b0ae1a19af3123d8f7fd .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-losb736l-8d69cfab23e5b0ae1a19af3123d8f7fd .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-losb736l-8d69cfab23e5b0ae1a19af3123d8f7fd av-special-heading-h2'><h2 class='av-special-heading-tag '  itemprop=\"headline\"  ><span class=\"ez-toc-section\" id=\"Come_si_esegue_un_test_di_frattura\"><\/span>Come si esegue un test di frattura?<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-5z15m5hy-c1579405fdb35df51b50fcd3a01648bc\">\n#top .av_textblock_section.av-5z15m5hy-c1579405fdb35df51b50fcd3a01648bc .avia_textblock{\nfont-size:16px;\n}\n\n@media only screen and (min-width: 480px) and (max-width: 767px){ \n#top .av_textblock_section.av-5z15m5hy-c1579405fdb35df51b50fcd3a01648bc .avia_textblock{\nfont-size:18px;\n}\n}\n<\/style>\n<section  class='av_textblock_section av-5z15m5hy-c1579405fdb35df51b50fcd3a01648bc '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>La metodologia delle prove di resistenza alla frattura si basa sull&#8217;applicazione di <strong>carichi incrementali al materiale fino al verificarsi della rottura<\/strong>. Prima delle prove, \u00e8 indispensabile una preparazione meticolosa, che prevede la creazione di un intaglio da fatica per facilitare l&#8217;innesco della frattura, comunemente ottenuto mediante elettroerosione (Electric Discharge Machining).<\/p>\n<p>Per condurre una prova di resistenza alla frattura, la fase iniziale prevede la preparazione di un campione di prova con una <strong>rottura preesistente.<\/strong> Questa spaccatura facilita la propagazione della frattura prevista durante la prova. L&#8217;utilizzo di una <strong>macchina di prova universale (UTM)<\/strong> \u00e8 indispensabile per condurre prove di resistenza alla frattura, data la sua versatilit\u00e0 nell&#8217;ospitare varie metodologie di prova, comprese quelle di trazione. Inoltre, \u00e8 fondamentale l&#8217;aderenza agli standard di riferimento, come prescritto da organizzazioni internazionali quali <strong>ASTM <\/strong> e <strong>ISO<\/strong>. Questi standard definiscono i requisiti specifici relativi alla calibrazione delle macchine e all&#8217;impostazione dei test, garantendo l&#8217;uniformit\u00e0 delle procedure in diversi scenari di test.<\/p>\n<p>Un metodo comunemente utilizzato nelle prove di resistenza alla frattura \u00e8 il <strong>test CTOD (Crack Tip Opening Displacement). <\/strong> Questo metodo consiste nel sottoporre un campione di materiale pre-crepato a una configurazione di prova di flessione a 3 punti. Le fasi procedurali per l&#8217;esecuzione di un test CTOD sono le seguenti:<\/p>\n<ul>\n<li><strong>Preparazione del campione<\/strong>: Lavorazione di un intaglio nel punto centrale del campione di materiale, seguita dall&#8217;induzione di una frattura a fatica in corrispondenza dell&#8217;intaglio lavorato.<\/li>\n<li><strong>Procedura di carico<\/strong>: Posizionamento del provino all&#8217;interno di una macchina di impostazione della flessione a 3 punti per applicare il carico richiesto.<\/li>\n<li><strong> Misurazione della deformazione<\/strong>: Fissare estensimetri su entrambi i lati della fessura per misurare meticolosamente le variazioni di deformazione durante il processo di prova.<\/li>\n<li><strong>Analisi della rottura<\/strong>: Applicazione di un carico progressivo fino al verificarsi del cedimento, documentando meticolosamente i risultati che ne derivano per un&#8217;analisi e una valutazione complete.<\/li>\n<\/ul>\n<div id=\"malwarebytes-root\"><\/div>\n<div id=\"malwarebytes-root\"><\/div>\n<\/div><\/section><br \/>\n<div  class='avia-button-wrap av-5uhwod5i-e1443ba79b07abd97d21a8aa19644dc0-wrap avia-button-left '><a href='https:\/\/step-lab.com\/it\/macchine-di-prova-dinamiche\/'  class='avia-button av-5uhwod5i-e1443ba79b07abd97d21a8aa19644dc0 av-link-btn avia-icon_select-no avia-size-small avia-position-left avia-color-theme-color'   aria-label=\"Clicca qui per le nostre macchine per prove di frattura\"><span class='avia_iconbox_title' >Clicca qui per le nostre macchine per prove di frattura<\/span><\/a><\/div><\/p><\/div><div  class='flex_column av-5qaavqom-c874de0f72858556cc9ad58aeebce1ee av_one_fifth flex_column_div  '     ><\/div><\/div><\/div><\/div><!-- close content main div --><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-42f6hbyu-4531c8188a4af429fc0710169ef595fd\">\n.avia-section.av-42f6hbyu-4531c8188a4af429fc0710169ef595fd{\nbackground-color:#ffffff;\nbackground-image:unset;\n}\n<\/style>\n<div id='av_section_14'  class='avia-section av-42f6hbyu-4531c8188a4af429fc0710169ef595fd main_color avia-section-default avia-no-border-styling avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-109881'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-3wv9ljh2-e485f5cd4f7e4a5a6885df1fdf18f67d av_one_fifth first flex_column_div  '     ><\/div><div  class='flex_column av-3qnpbvx2-f94ef4dfa8ea2d65c8f11ee4a90770fe av_three_fifth flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-losb89ot-e932485ec4a9151495b3c073d704473f\">\n#top .av-special-heading.av-losb89ot-e932485ec4a9151495b3c073d704473f{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-losb89ot-e932485ec4a9151495b3c073d704473f .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-losb89ot-e932485ec4a9151495b3c073d704473f .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-losb89ot-e932485ec4a9151495b3c073d704473f av-special-heading-h2'><h2 class='av-special-heading-tag '  itemprop=\"headline\"  ><span class=\"ez-toc-section\" id=\"Norme_popolari_nelle_prove_di_frattura\"><\/span>Norme popolari nelle prove di frattura<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-3lqfiil2-802d25ad89ab2a961ec77dbb2bed47cc\">\n#top .av_textblock_section.av-3lqfiil2-802d25ad89ab2a961ec77dbb2bed47cc .avia_textblock{\nfont-size:16px;\n}\n<\/style>\n<section  class='av_textblock_section av-3lqfiil2-802d25ad89ab2a961ec77dbb2bed47cc '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><ul>\n<li>ASTM D5528: per la resistenza interlaminare dei compositi polimerici unidirezionali.<\/li>\n<li>ASTM D6671: Metodo di prova standard per la tenacit\u00e0 alla frattura interlaminare di compositi a matrice polimerica rinforzati con fibre unidirezionali.<\/li>\n<li>ASTM E208: Metodo di prova standard per la conduzione della prova di caduta del peso per determinare la temperatura di transizione di non duttilit\u00e0 degli acciai ferritici.<\/li>\n<li><a href=\"https:\/\/step-lab.com\/astm\/astm-e399\/\">ASTM E399: Metodo di prova standard per la tenacit\u00e0 alla frattura lineare-elastica a deformazione piana dei materiali metallici.<\/a><\/li>\n<li>ASTM E561: Metodo di prova standard per la determinazione della curva KR.<\/li>\n<li>ASTM E604: Metodo di prova standard per le prove di strappo dinamico dei materiali metallici.<\/li>\n<li>ASTM E740: Standard per le prove di frattura con provini di tensione a cricca superficiale.<\/li>\n<li>ASTM E1304: Metodo di prova standard per la resistenza alla frattura in piano (Chevron-Notch) dei materiali metallici.<\/li>\n<li>ASTM E1681: Metodo di prova standard per la determinazione del fattore di intensit\u00e0 delle sollecitazioni di soglia per la cricca assistita dall&#8217;ambiente dei materiali metallici.<\/li>\n<li>ASTM E1820: Metodo di prova standard per la misurazione della resistenza alla frattura.<\/li>\n<li>ASTM E1921-22a: Metodo di prova standard per la determinazione della temperatura di riferimento, T0, per gli acciai ferritici nell&#8217;intervallo di transizione.<\/li>\n<li>ISO 12135: Materiali metallici-Metodo di prova unificato per la determinazione della tenacit\u00e0 alla frattura quasi statica.<\/li>\n<li>ISO 17281: Materie plastiche-Determinazione della resistenza alla frattura (GIC e KIC) a velocit\u00e0 di carico moderatamente elevate (1 m\/s).<\/li>\n<\/ul>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-3i1tsy6u-93f93212c8a6e74ece4eb5d8fbe331e2 av_one_fifth flex_column_div  '     ><\/div><\/div><\/div><\/div><!-- close content main div --><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-3djf89p2-42df109071b5374a2141924ae885fd0f\">\n.avia-section.av-3djf89p2-42df109071b5374a2141924ae885fd0f{\nbackground-color:#f7f7f7;\nbackground-image:unset;\n}\n<\/style>\n<div id='av_section_15'  class='avia-section av-3djf89p2-42df109071b5374a2141924ae885fd0f main_color avia-section-default avia-no-border-styling avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-109881'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-3b5tkmja-464cbdd51e61916ef21bfbfd33659b5b av_one_fifth first flex_column_div  '     ><\/div><div  class='flex_column av-36dceymu-4c9c85644851d938641ad4fa7e909a02 av_three_fifth flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-losb8etb-84842c426c39b48bb2f664eec536a81f\">\n#top .av-special-heading.av-losb8etb-84842c426c39b48bb2f664eec536a81f{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-losb8etb-84842c426c39b48bb2f664eec536a81f .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-losb8etb-84842c426c39b48bb2f664eec536a81f .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-losb8etb-84842c426c39b48bb2f664eec536a81f av-special-heading-h2'><h2 class='av-special-heading-tag '  itemprop=\"headline\"  ><span class=\"ez-toc-section\" id=\"Macchine_per_prove_di_frattura\"><\/span>Macchine per prove di frattura<span class=\"ez-toc-section-end\"><\/span><\/h2><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-lv53zhbm-9ac14b42fb96e663c976696b80cac730\">\n#top .av_textblock_section.av-lv53zhbm-9ac14b42fb96e663c976696b80cac730 .avia_textblock{\nfont-size:16px;\n}\n<\/style>\n<section  class='av_textblock_section av-lv53zhbm-9ac14b42fb96e663c976696b80cac730 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>STEP Lab \u00e8 sinonimo di eccellenza nelle <strong>prove sui materiali<\/strong>, vantando una competenza senza pari nel settore. Con le nostre <strong>avanzate macchine di prova elettriche<\/strong>, siamo in grado di eseguire precise valutazioni della resistenza di frattura. Che si tratti di <strong>carichi elevati<\/strong>o di <strong>temperature estreme<\/strong>, la nostra struttura \u00e8 attrezzata per gestire diverse condizioni di prova, garantendo valutazioni approfondite e risultati affidabili per tutti i nostri clienti.<\/p>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-aviy4ie-8b9d6daab54ec12a52c67e03c2ebdf8d\">\n#top .hr.hr-invisible.av-aviy4ie-8b9d6daab54ec12a52c67e03c2ebdf8d{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-aviy4ie-8b9d6daab54ec12a52c67e03c2ebdf8d hr-invisible'><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><\/p><\/div><div  class='flex_column av-2xdg0fx2-12f27d569e145ddd4d1e0f37e0b3758c av_one_fifth flex_column_div  '     ><\/div><div  class='flex_column av-2peb4iza-850afa2a0ccd534fbded3bc3a3227941 av_one_fourth first flex_column_div  '     ><\/div><div  class='flex_column av-2oaqe8d2-d9abeac5bbbf2392b56371d5406e9a89 av_one_fourth flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2hz4ut7a-7b06aec2178ec38b701158e5f502b6e9\">\n.avia-image-container.av-2hz4ut7a-7b06aec2178ec38b701158e5f502b6e9 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-2hz4ut7a-7b06aec2178ec38b701158e5f502b6e9 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-2hz4ut7a-7b06aec2178ec38b701158e5f502b6e9 av-styling- avia-align-center'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-76137 avia-img-lazy-loading-not-76137 avia_image ' src=\"https:\/\/step-lab.com\/wp-content\/uploads\/EA050-Statico-lato.3661-239x300.png\" alt='' title='EA050 Statico lato.3661'  height=\"300\" width=\"239\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/step-lab.com\/wp-content\/uploads\/EA050-Statico-lato.3661-239x300.png 239w, https:\/\/step-lab.com\/wp-content\/uploads\/EA050-Statico-lato.3661-822x1030.png 822w, https:\/\/step-lab.com\/wp-content\/uploads\/EA050-Statico-lato.3661-768x962.png 768w, https:\/\/step-lab.com\/wp-content\/uploads\/EA050-Statico-lato.3661-1226x1536.png 1226w, https:\/\/step-lab.com\/wp-content\/uploads\/EA050-Statico-lato.3661-1634x2048.png 1634w, https:\/\/step-lab.com\/wp-content\/uploads\/EA050-Statico-lato.3661-1197x1500.png 1197w, https:\/\/step-lab.com\/wp-content\/uploads\/EA050-Statico-lato.3661-563x705.png 563w, https:\/\/step-lab.com\/wp-content\/uploads\/EA050-Statico-lato.3661.png 1722w\" sizes=\"(max-width: 239px) 100vw, 239px\" \/><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-8jwqhxy-1899419816d21158ccc54ba61e45507f\">\n#top .av_textblock_section.av-8jwqhxy-1899419816d21158ccc54ba61e45507f .avia_textblock{\nfont-size:16px;\n}\n<\/style>\n<section  class='av_textblock_section av-8jwqhxy-1899419816d21158ccc54ba61e45507f '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p style=\"text-align: center;\"><strong>SERIE EA<\/strong><\/p>\n<p style=\"text-align: center;\">Attuatori elettromeccanici<\/p>\n<\/div><\/section><br \/>\n<div  class='avia-button-wrap av-27lsa7py-266033a11d35bea899e21d00312d2b88-wrap avia-button-center '><a href='https:\/\/step-lab.com\/it\/attuatori-per-test-a-fatica\/'  class='avia-button av-27lsa7py-266033a11d35bea899e21d00312d2b88 av-link-btn avia-icon_select-no avia-size-small avia-position-center avia-color-theme-color'   aria-label=\"Leggi di pi\u00f9\"><span class='avia_iconbox_title' >Leggi di pi\u00f9<\/span><\/a><\/div><\/p><\/div><div  class='flex_column av-22fcmp92-4f421d6558f524b489f4965ed3115feb av_one_fourth flex_column_div  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-pp9r9y-2d25857efec7032b19e0c5b868f6bd45\">\n.avia-image-container.av-pp9r9y-2d25857efec7032b19e0c5b868f6bd45 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-pp9r9y-2d25857efec7032b19e0c5b868f6bd45 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-pp9r9y-2d25857efec7032b19e0c5b868f6bd45 av-styling- avia-align-center'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-80328 avia-img-lazy-loading-not-80328 avia_image ' src=\"https:\/\/step-lab.com\/wp-content\/uploads\/2022\/06\/UD020-PAGINA-LINEARI.123-191x300.png\" alt='' title='UD020 PAGINA LINEARI.123'  height=\"300\" width=\"191\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/step-lab.com\/wp-content\/uploads\/2022\/06\/UD020-PAGINA-LINEARI.123-191x300.png 191w, https:\/\/step-lab.com\/wp-content\/uploads\/2022\/06\/UD020-PAGINA-LINEARI.123-657x1030.png 657w, https:\/\/step-lab.com\/wp-content\/uploads\/2022\/06\/UD020-PAGINA-LINEARI.123-768x1204.png 768w, https:\/\/step-lab.com\/wp-content\/uploads\/2022\/06\/UD020-PAGINA-LINEARI.123-980x1536.png 980w, https:\/\/step-lab.com\/wp-content\/uploads\/2022\/06\/UD020-PAGINA-LINEARI.123-1306x2048.png 1306w, https:\/\/step-lab.com\/wp-content\/uploads\/2022\/06\/UD020-PAGINA-LINEARI.123-957x1500.png 957w, https:\/\/step-lab.com\/wp-content\/uploads\/2022\/06\/UD020-PAGINA-LINEARI.123-450x705.png 450w, https:\/\/step-lab.com\/wp-content\/uploads\/2022\/06\/UD020-PAGINA-LINEARI.123.png 1792w\" sizes=\"(max-width: 191px) 100vw, 191px\" \/><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1vpfhw7q-0b1f4b9e86d30d88ecf3d6b5d97df482\">\n#top .av_textblock_section.av-1vpfhw7q-0b1f4b9e86d30d88ecf3d6b5d97df482 .avia_textblock{\nfont-size:16px;\n}\n<\/style>\n<section  class='av_textblock_section av-1vpfhw7q-0b1f4b9e86d30d88ecf3d6b5d97df482 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p style=\"text-align: center;\"><strong>SERIE UD<\/strong><\/p>\n<p style=\"text-align: center;\">Macchine di prova a motore lineare<\/p>\n<\/div><\/section><br \/>\n<div  class='avia-button-wrap av-1pqxhs5y-3326d8b32b87413b0c3d8abf8aa13688-wrap avia-button-center '><a href='https:\/\/step-lab.com\/it\/sistemi-basati-su-motori-lineari\/'  class='avia-button av-1pqxhs5y-3326d8b32b87413b0c3d8abf8aa13688 av-link-btn avia-icon_select-no avia-size-small avia-position-center avia-color-theme-color'   aria-label=\"Leggi di pi\u00f9\"><span class='avia_iconbox_title' >Leggi di pi\u00f9<\/span><\/a><\/div><\/p><\/div><\/div><\/div><\/div><!-- close content main div --><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1nolabyu-2f1d80d10c493cf27854e7ab85cab1b7\">\n.avia-section.av-1nolabyu-2f1d80d10c493cf27854e7ab85cab1b7{\nbackground-color:#dddddd;\nbackground-image:unset;\n}\n<\/style>\n<div id='av_section_16'  class='avia-section av-1nolabyu-2f1d80d10c493cf27854e7ab85cab1b7 main_color avia-section-default avia-no-border-styling avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-109881'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1f9d3nfa-8ca153dc6b675320703f7af5ee208b62\">\n.flex_column.av-1f9d3nfa-8ca153dc6b675320703f7af5ee208b62{\nborder-radius:0px 0px 0px 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