{"id":3157,"date":"2026-06-24T16:13:03","date_gmt":"2026-06-24T14:13:03","guid":{"rendered":"https:\/\/www.technical-center.de\/wiki\/charpy-impact-bending-test\/"},"modified":"2026-06-24T16:13:03","modified_gmt":"2026-06-24T14:13:03","slug":"charpy-impact-bending-test","status":"publish","type":"encyclopedia","link":"https:\/\/www.technical-center.de\/en\/glossary\/charpy-impact-bending-test\/","title":{"rendered":"Charpy impact bending test"},"content":{"rendered":"\n<p><strong>Definition:<\/strong> The Charpy impact bending test is a dynamic testing method for determining the toughness of a material under impact loading. A standardised notched specimen is broken by a pendulum in a sudden impact, with the absorbed impact energy being measured. The procedure is regulated in DIN EN ISO 148-1.<\/p>\n<p><strong>Practical relevance:<\/strong> The determined impact energy (e.g. KV in joules) serves to assess the transition behaviour from ductile to brittle (brittle fracture transition temperature). The test is particularly relevant for <a class=\"tc-inlink\" href=\"\/en\/materials-engineering\/materials-for-pressure-equipment\/\">pressure equipment<\/a>, structural steelwork and low-temperature applications. Test temperature, specimen shape (V- or U-notch) and orientation relative to the rolling direction significantly influence the result.<\/p>\n<p><strong>Decision-making perspectives:<\/strong><\/p>\n<ul>\n<li><strong>Technical decision-makers:<\/strong> Assessment of low-temperature toughness and selection of suitable materials.<\/li>\n<li><strong>Purchasing\/project management:<\/strong> Specification of required minimum impact energies at defined temperatures.<\/li>\n<li><strong>Science:<\/strong> Investigation of brittle fracture mechanisms and microstructural influences.<\/li>\n<li><strong>Insurance\/law:<\/strong> Demonstration of sufficient toughness in failure cases relevant to brittle fracture.<\/li>\n<\/ul>\n<p><strong>Typical testing or verification methods:<\/strong> Charpy V-notch test, temperature series testing, fracture surface analysis in the SEM.<\/p>\n<p><strong>FAQ:<\/strong><\/p>\n<ul>\n<li>Why is the Charpy impact bending test carried out at low temperatures?<\/li>\n<li>To determine the susceptibility to brittle fracture and the transition temperature of the material.<\/li>\n<\/ul>\n","protected":false},"author":0,"featured_media":0,"template":"","encyclopedia-tag":[],"class_list":["post-3157","encyclopedia","type-encyclopedia","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.technical-center.de\/en\/wp-json\/wp\/v2\/encyclopedia\/3157","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.technical-center.de\/en\/wp-json\/wp\/v2\/encyclopedia"}],"about":[{"href":"https:\/\/www.technical-center.de\/en\/wp-json\/wp\/v2\/types\/encyclopedia"}],"wp:attachment":[{"href":"https:\/\/www.technical-center.de\/en\/wp-json\/wp\/v2\/media?parent=3157"}],"wp:term":[{"taxonomy":"encyclopedia-tag","embeddable":true,"href":"https:\/\/www.technical-center.de\/en\/wp-json\/wp\/v2\/encyclopedia-tag?post=3157"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}