{"id":169953,"date":"2023-05-15T08:33:06","date_gmt":"2023-05-15T08:33:06","guid":{"rendered":"\/knowledge\/forums\/topic\/what-is-the-difference-between-strain-hardening-and-modified-strain-hardening-laws-for-creep\/"},"modified":"2023-07-31T12:33:18","modified_gmt":"2023-07-31T12:33:18","slug":"what-is-the-difference-between-strain-hardening-and-modified-strain-hardening-laws-for-creep","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-is-the-difference-between-strain-hardening-and-modified-strain-hardening-laws-for-creep\/","title":{"rendered":"What is the difference between strain hardening and modified strain hardening laws for creep?"},"content":{"rendered":"<p>Modified strain hardening is the integral form of strain hardening assuming constant stress, so they are essentially the same for constant stress case, only difference is the calculation of creep strain, MSH will be more accurate regardless of time step. For none constant stress cases, they are just two models that fit to experiment, although they will likely closer to each other in the response.  See attached pdf for more rigorous explanation.<\/p>\n<p>Attachments:<br \/>\n1. <a href=https:\/\/ansys13.ansys.com\/KnowledgeArticles\/Phase-2B\/2056325\/2056325.zip>2056325.zip<\/a><\/p>\n","protected":false},"template":"","class_list":["post-169953","topic","type-topic","status-publish","hentry","topic-tag-materials","topic-tag-mechanical-apdl","topic-tag-other","topic-tag-special-purpose","topic-tag-structural-mechanics"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Modified strain hardening is the integral form of strain hardening assuming constant stress, so they are essentially the same for constant stress case, only difference is the calculation of creep strain, MSH will be more accurate regardless of time step. For none constant stress cases, they are just two models that fit to experiment, although\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-is-the-difference-between-strain-hardening-and-modified-strain-hardening-laws-for-creep\/\" \/>\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 Knowledge | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"What is the difference between strain hardening and modified strain hardening laws for creep? | Ansys Knowledge\" \/>\n\t\t<meta property=\"og:description\" content=\"Modified strain hardening is the integral form of strain hardening assuming constant stress, so they are essentially the same for constant stress case, only difference is the calculation of creep strain, MSH will be more accurate regardless of time step. For none constant stress cases, they are just two models that fit to experiment, although\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/what-is-the-difference-between-strain-hardening-and-modified-strain-hardening-laws-for-creep\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-05-15T08:33:06+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-07-31T12:33:18+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"What is the difference between strain hardening and modified strain hardening laws for creep? | Ansys Knowledge\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Modified strain hardening is the integral form of strain hardening assuming constant stress, so they are essentially the same for constant stress case, only difference is the calculation of creep strain, MSH will be more accurate regardless of time step. For none constant stress cases, they are just two models that fit to experiment, although\" \/>\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\\\/knowledge\\\/forums\\\/topic\\\/what-is-the-difference-between-strain-hardening-and-modified-strain-hardening-laws-for-creep\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"position\":2,\"name\":\"Topics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/structural-mechanics\\\/#listItem\",\"name\":\"structural-mechanics\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/structural-mechanics\\\/#listItem\",\"position\":3,\"name\":\"structural-mechanics\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/structural-mechanics\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/what-is-the-difference-between-strain-hardening-and-modified-strain-hardening-laws-for-creep\\\/#listItem\",\"name\":\"What is the difference between strain hardening and modified strain hardening laws for creep?\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/what-is-the-difference-between-strain-hardening-and-modified-strain-hardening-laws-for-creep\\\/#listItem\",\"position\":4,\"name\":\"What is the difference between strain hardening and modified strain hardening laws for creep?\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic-tag\\\/structural-mechanics\\\/#listItem\",\"name\":\"structural-mechanics\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/#organization\",\"name\":\"Ansys Knowledge\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/what-is-the-difference-between-strain-hardening-and-modified-strain-hardening-laws-for-creep\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/knowledge\\\/forums\\\/topic\\\/what-is-the-difference-between-strain-hardening-and-modified-strain-hardening-laws-for-creep\\\/\",\"name\":\"What is the difference between strain hardening and modified strain hardening laws for creep? | Ansys Knowledge\",\"description\":\"Modified strain hardening is the integral form of strain hardening assuming constant stress, so they are essentially the same for constant stress case, only difference is the calculation of creep strain, MSH will be more accurate regardless of time step. 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