{"id":397716,"date":"2024-12-17T09:10:18","date_gmt":"2024-12-17T09:10:18","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-material-combination\/"},"modified":"2024-12-17T09:10:18","modified_gmt":"2024-12-17T09:10:18","slug":"ansys-material-combination","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-material-combination\/","title":{"rendered":"Ansys Material Combination"},"content":{"rendered":"<p>&lt;p&gt;Hello everyone,&lt;br&gt;&lt;br&gt;I am currently using following material model combination in Ansys.&lt;br&gt;1) Nonlinear Isotropic Hardening- Voce model&lt;br&gt;2) Kinematic Hardening &#8211; Chaboche Model&lt;br&gt;3) Creep &#8211; Modified Strain Hardening&lt;br&gt;APDL code looks like this,&lt;br&gt;mpdata,ex, matID,1, ARG1 !Young&#8217;s modulus [MPa]&lt;br&gt;mpdata,prxy,matID,1, 0.34 !Poisson ratio&lt;br&gt;tb,CHABOCHE,matID,1,2&lt;br&gt;tbdata,1,C_1&lt;br&gt;tbdata,2,C_2,C_3&lt;br&gt;tbdata,4,C_4,C_5&lt;br&gt;tb,NLISO,matID,1,,VOCE&lt;br&gt;tbdata,1,k_initial,R_initial,R_inf,b&lt;br&gt;&lt;br&gt;My question now, is this a valid material combination in ANSYS?&lt;br&gt;The model is experiencing convergence problems for some material parameters.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-397716","topic","type-topic","status-publish","hentry","topic-tag-apdl","topic-tag-combined-time-hardening-1","topic-tag-creep","topic-tag-mechanical"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hello everyone,I am currently using following material model combination in Ansys.1) Nonlinear Isotropic Hardening- Voce model2) Kinematic Hardening - Chaboche Model3) Creep - Modified Strain HardeningAPDL code looks like this,mpdata,ex, matID,1, ARG1 !Young&#039;s modulus [MPa]mpdata,prxy,matID,1, 0.34 !Poisson ratiotb,CHABOCHE,matID,1,2tbdata,1,C_1tbdata,2,C_2,C_3tbdata,4,C_4,C_5tb,NLISO,matID,1,,VOCEtbdata,1,k_initial,R_initial,R_inf,bMy question now, is this a valid material combination in ANSYS?The model is experiencing convergence problems for some\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-material-combination\/\" \/>\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=\"Ansys Material Combination | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Hello everyone,I am currently using following material model combination in Ansys.1) Nonlinear Isotropic Hardening- Voce model2) Kinematic Hardening - Chaboche Model3) Creep - Modified Strain HardeningAPDL code looks like this,mpdata,ex, matID,1, ARG1 !Young&#039;s modulus [MPa]mpdata,prxy,matID,1, 0.34 !Poisson ratiotb,CHABOCHE,matID,1,2tbdata,1,C_1tbdata,2,C_2,C_3tbdata,4,C_4,C_5tb,NLISO,matID,1,,VOCEtbdata,1,k_initial,R_initial,R_inf,bMy question now, is this a valid material combination in ANSYS?The model is experiencing convergence problems for some\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-material-combination\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-12-17T09:10:18+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-12-17T09:10:18+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Ansys Material Combination | Ansys Learning Forum\" \/>\n\t\t<meta 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Kinematic Hardening - Chaboche Model3) Creep - Modified Strain HardeningAPDL code looks like this,mpdata,ex, matID,1, ARG1 !Young's modulus [MPa]mpdata,prxy,matID,1, 0.34 !Poisson ratiotb,CHABOCHE,matID,1,2tbdata,1,C_1tbdata,2,C_2,C_3tbdata,4,C_4,C_5tb,NLISO,matID,1,,VOCEtbdata,1,k_initial,R_initial,R_inf,bMy question now, is this a valid material combination in ANSYS?The model is experiencing convergence problems for 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currently using following material model combination in Ansys.1) Nonlinear Isotropic Hardening- Voce model2) Kinematic Hardening - Chaboche Model3) Creep - Modified Strain HardeningAPDL code looks like this,mpdata,ex, matID,1, ARG1 !Young's modulus [MPa]mpdata,prxy,matID,1, 0.34 !Poisson ratiotb,CHABOCHE,matID,1,2tbdata,1,C_1tbdata,2,C_2,C_3tbdata,4,C_4,C_5tb,NLISO,matID,1,,VOCEtbdata,1,k_initial,R_initial,R_inf,bMy question now, is this a valid material combination in ANSYS?The model is experiencing convergence problems for some","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/ansys-material-combination\/#breadcrumblist"},"datePublished":"2024-12-17T09:10:18+00:00","dateModified":"2024-12-17T09:10:18+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/forum\/#website","url":"https:\/\/innovationspace.ansys.com\/forum\/","name":"Ansys 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some"},"aioseo_meta_data":{"post_id":"397716","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 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