{"id":382063,"date":"2024-09-09T20:53:46","date_gmt":"2024-09-09T20:53:46","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/create-two-material-curves-for-biaxial-analysis-in-apdl\/"},"modified":"2024-09-09T20:53:46","modified_gmt":"2024-09-09T20:53:46","slug":"create-two-material-curves-for-biaxial-analysis-in-apdl","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/create-two-material-curves-for-biaxial-analysis-in-apdl\/","title":{"rendered":"Create two material curves for biaxial analysis in APDL"},"content":{"rendered":"<p>&lt;p&gt;Dear community,&lt;\/p&gt;&lt;p&gt;I would like to know how I can define two material curves for an anisotropic material model? I have two stress-strain curves for tension and torsion and want to implement them to define the behavior under biaxial static loading, but i am confused on how to assign them to one material model. My first try was to use TB,EXPE but in the manual it says that an additional model is needed and I am unsure on how to combine them. I am relatively new to APDL and thankful for any advice!&nbsp;&lt;\/p&gt;&lt;p&gt;Thanks.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-382063","topic","type-topic","status-publish","hentry","topic-tag-add-material","topic-tag-curve-fitting"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Dear community,I would like to know how I can define two material curves for an anisotropic material model? I have two stress-strain curves for tension and torsion and want to implement them to define the behavior under biaxial static loading, but i am confused on how to assign them to one material model. My first\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/create-two-material-curves-for-biaxial-analysis-in-apdl\/\" \/>\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=\"Create two material curves for biaxial analysis in APDL | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Dear community,I would like to know how I can define two material curves for an anisotropic material model? 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I have two stress-strain curves for tension and torsion and want to implement them to define the behavior under biaxial static loading, but i am confused on how to assign them to one material model. My first\" \/>\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\\\/create-two-material-curves-for-biaxial-analysis-in-apdl\\\/#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\\\/curve-fitting\\\/#listItem\",\"name\":\"curve-fitting\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/curve-fitting\\\/#listItem\",\"position\":3,\"name\":\"curve-fitting\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/curve-fitting\\\/\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/create-two-material-curves-for-biaxial-analysis-in-apdl\\\/#listItem\",\"name\":\"Create two material curves for biaxial analysis in APDL\"},\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/topics\\\/#listItem\",\"name\":\"Topics\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/create-two-material-curves-for-biaxial-analysis-in-apdl\\\/#listItem\",\"position\":4,\"name\":\"Create two material curves for biaxial analysis in APDL\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic-tag\\\/curve-fitting\\\/#listItem\",\"name\":\"curve-fitting\"}}]},{\"@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\\\/create-two-material-curves-for-biaxial-analysis-in-apdl\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/topic\\\/create-two-material-curves-for-biaxial-analysis-in-apdl\\\/\",\"name\":\"Create two material curves for biaxial analysis in APDL | Ansys Learning Forum\",\"description\":\"Dear community,I would like to know how I can define two material curves for an anisotropic material model? 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