{"id":394276,"date":"2024-11-19T12:53:50","date_gmt":"2024-11-19T12:53:50","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/eqivalent-plastic-strain-not-corresponding-to-fomulas\/"},"modified":"2024-11-19T12:53:50","modified_gmt":"2024-11-19T12:53:50","slug":"eqivalent-plastic-strain-not-corresponding-to-fomulas","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/eqivalent-plastic-strain-not-corresponding-to-fomulas\/","title":{"rendered":"Eqivalent plastic strain not corresponding to fomulas"},"content":{"rendered":"<p>&lt;p&gt;hello&lt;br&gt;iam using differnt materials on a tensile test to check different things.&nbsp;&lt;br&gt;I came across something i cant figure out, someone please help me explain&#8230;&lt;br&gt;&lt;br&gt;i have a tensile test, the section in the middle is 50mm long. i apply a displacement of 40mm in one end and its fixed in another&#8230;&lt;\/p&gt;&lt;p&gt;By the strain formula, this &epsilon;= &Delta;L\/L, this should give a strain of 80% in my analysis&#8230;&nbsp;&lt;\/p&gt;&lt;p&gt;But in my analysis the strain varies from 56%-67%, depending on which material properties i use. Can someone explain why it is like this?&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/19-11-2024-1732020502-mceclip0.png\" width=\"432\" height=\"318\" \/>&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/19-11-2024-1732020559-mceclip1.png\" \/>&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/19-11-2024-1732020603-mceclip2.png\" \/>&lt;\/p&gt;&lt;p&gt;Same boundary conditions as above, but different material:&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/19-11-2024-1732020705-mceclip3.png\" \/>&lt;\/p&gt;&lt;p&gt;<img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/11\/19-11-2024-1732020781-mceclip4.png\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-394276","topic","type-topic","status-publish","hentry","topic-tag-elastic-plastic-material","topic-tag-equivalentplasticstrain-1","topic-tag-material","topic-tag-plasticstrain-1","topic-tag-tensile-test","topic-tag-test"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"helloiam using differnt materials on a tensile test to check different things. I came across something i cant figure out, someone please help me explain...i have a tensile test, the section in the middle is 50mm long. i apply a displacement of 40mm in one end and its fixed in another...By the strain formula, this \u03b5=\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/eqivalent-plastic-strain-not-corresponding-to-fomulas\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Eqivalent plastic strain not corresponding to fomulas | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"helloiam using differnt materials on a tensile test to check different things. I came across something i cant figure out, someone please help me explain...i have a tensile test, the section in the middle is 50mm long. i apply a displacement of 40mm in one end and its fixed in another...By the strain formula, this \u03b5=\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/eqivalent-plastic-strain-not-corresponding-to-fomulas\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-11-19T12:53:50+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-11-19T12:53:50+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Eqivalent plastic strain not corresponding to fomulas | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"helloiam using differnt materials on a tensile test to check different things. I came across something i cant figure out, someone please help me explain...i have a tensile test, the section in the middle is 50mm long. i apply a displacement of 40mm in one end and its fixed in another...By the strain formula, this \u03b5=\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/eqivalent-plastic-strain-not-corresponding-to-fomulas\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/test\\\/#listItem\",\"name\":\"test\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/test\\\/#listItem\",\"position\":3,\"name\":\"test\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/test\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/eqivalent-plastic-strain-not-corresponding-to-fomulas\\\/#listItem\",\"name\":\"Eqivalent plastic strain not corresponding to fomulas\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/eqivalent-plastic-strain-not-corresponding-to-fomulas\\\/#listItem\",\"position\":4,\"name\":\"Eqivalent plastic strain not corresponding to fomulas\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/test\\\/#listItem\",\"name\":\"test\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/eqivalent-plastic-strain-not-corresponding-to-fomulas\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/eqivalent-plastic-strain-not-corresponding-to-fomulas\\\/\",\"name\":\"Eqivalent plastic strain not corresponding to fomulas | Ansys Learning Forum\",\"description\":\"helloiam using differnt materials on a tensile test to check different things. I came across something i cant figure out, someone please help me explain...i have a tensile test, the section in the middle is 50mm long. i apply a displacement of 40mm in one end and its fixed in another...By the strain formula, this \\u03b5=\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/eqivalent-plastic-strain-not-corresponding-to-fomulas\\\/#breadcrumblist\"},\"datePublished\":\"2024-11-19T12:53:50+00:00\",\"dateModified\":\"2024-11-19T12:53:50+00:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Eqivalent plastic strain not corresponding to fomulas | Ansys Learning Forum","description":"helloiam using differnt materials on a tensile test to check different things. I came across something i cant figure out, someone please help me explain...i have a tensile test, the section in the middle is 50mm long. i apply a displacement of 40mm in one end and its fixed in another...By the strain formula, this \u03b5=","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/eqivalent-plastic-strain-not-corresponding-to-fomulas\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/eqivalent-plastic-strain-not-corresponding-to-fomulas\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/forum","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","position":2,"name":"Topics","item":"https:\/\/innovationspace.ansys.com\/forum\/topics\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/test\/#listItem","name":"test"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/test\/#listItem","position":3,"name":"test","item":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/test\/","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/eqivalent-plastic-strain-not-corresponding-to-fomulas\/#listItem","name":"Eqivalent plastic strain not corresponding to fomulas"},"previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/topics\/#listItem","name":"Topics"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/eqivalent-plastic-strain-not-corresponding-to-fomulas\/#listItem","position":4,"name":"Eqivalent plastic strain not corresponding to fomulas","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/test\/#listItem","name":"test"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization","name":"Ansys Learning Forum","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/forum\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/eqivalent-plastic-strain-not-corresponding-to-fomulas\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/eqivalent-plastic-strain-not-corresponding-to-fomulas\/","name":"Eqivalent plastic strain not corresponding to fomulas | Ansys Learning Forum","description":"helloiam using differnt materials on a tensile test to check different things. I came across something i cant figure out, someone please help me explain...i have a tensile test, the section in the middle is 50mm long. i apply a displacement of 40mm in one end and its fixed in another...By the strain formula, this \u03b5=","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/eqivalent-plastic-strain-not-corresponding-to-fomulas\/#breadcrumblist"},"datePublished":"2024-11-19T12:53:50+00:00","dateModified":"2024-11-19T12:53:50+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/forum\/#website","url":"https:\/\/innovationspace.ansys.com\/forum\/","name":"Ansys Learning Forum","description":"Ansys Innovation Space","inLanguage":"en-US","publisher":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization"}}]},"og:locale":"en_US","og:site_name":"Ansys Learning Forum | Ansys Innovation Space","og:type":"article","og:title":"Eqivalent plastic strain not corresponding to fomulas | Ansys Learning Forum","og:description":"helloiam using differnt materials on a tensile test to check different things. I came across something i cant figure out, someone please help me explain...i have a tensile test, the section in the middle is 50mm long. i apply a displacement of 40mm in one end and its fixed in another...By the strain formula, this \u03b5=","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/eqivalent-plastic-strain-not-corresponding-to-fomulas\/","article:published_time":"2024-11-19T12:53:50+00:00","article:modified_time":"2024-11-19T12:53:50+00:00","twitter:card":"summary_large_image","twitter:title":"Eqivalent plastic strain not corresponding to fomulas | Ansys Learning Forum","twitter:description":"helloiam using differnt materials on a tensile test to check different things. I came across something i cant figure out, someone please help me explain...i have a tensile test, the section in the middle is 50mm long. i apply a displacement of 40mm in one end and its fixed in another...By the strain formula, this \u03b5="},"aioseo_meta_data":{"post_id":"394276","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"created":"2025-10-19 09:18:36","updated":"2025-10-19 09:18:36","ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\/topics\/\" title=\"Topics\">Topics<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/test\/\" title=\"test\">test<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tEqivalent plastic strain not corresponding to fomulas\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Topics","link":"https:\/\/innovationspace.ansys.com\/forum\/topics\/"},{"label":"test","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic-tag\/test\/"},{"label":"Eqivalent plastic strain not corresponding to fomulas","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/eqivalent-plastic-strain-not-corresponding-to-fomulas\/"}],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["48790","480261","275204"],"_bbp_author_ip":["212.33.144.253"],"_btv_view_count":["522"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["394276"],"_bbp_forum_id":["27791"],"_bbp_engagement":["48790","275204","480261"],"_bbp_voice_count":["3"],"_bbp_reply_count":["4"],"_bbp_last_reply_id":["394609"],"_bbp_last_active_id":["394609"],"_bbp_last_active_time":["2024-11-20 17:55:36"]},"test":"mloelandslb-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/394276","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/394276\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=394276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}