{"id":236331,"date":"2022-09-26T20:49:44","date_gmt":"2022-09-26T20:49:44","guid":{"rendered":"\/forum\/forums\/reply\/236331\/"},"modified":"2022-09-26T20:49:44","modified_gmt":"2022-09-26T20:49:44","slug":"236331","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236331\/","title":{"rendered":"Reply To: [Concrete model] Menetrey-Willam model, Softening behavior"},"content":{"rendered":"<p>&lt;p&gt;Anytime you begin to lose stiffness in a static structural analysis, there is always potential for convergence trouble.&nbsp;&nbsp;&lt;\/p&gt;&lt;p&gt;The sensitivity depends on the application.&nbsp; How localized is the material yielding?&nbsp; How well is the structure constrained?&lt;\/p&gt;&lt;p&gt;Perhaps the structure is beginning to buckle and non-convergence is a reflection of a physical instability.&lt;\/p&gt;&lt;p&gt;You could test this theory by post processing your force-deflection curve to determine if you have lost all resistance to further loading.&lt;\/p&gt;&lt;p&gt;You could also try adding stabilization damping to make convergence more forgiving to material softening.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-236331","reply","type-reply","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Anytime you begin to lose stiffness in a static structural analysis, there is always potential for convergence trouble. The sensitivity depends on the application. How localized is the material yielding? How well is the structure constrained?Perhaps the structure is beginning to buckle and non-convergence is a reflection of a physical instability.You could test this theory by\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236331\/\" \/>\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=\"Reply To: [Concrete model] Menetrey-Willam model, Softening behavior | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Anytime you begin to lose stiffness in a static structural analysis, there is always potential for convergence trouble. The sensitivity depends on the application. How localized is the material yielding? How well is the structure constrained?Perhaps the structure is beginning to buckle and non-convergence is a reflection of a physical instability.You could test this theory by\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236331\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2022-09-26T20:49:44+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2022-09-26T20:49:44+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: [Concrete model] Menetrey-Willam model, Softening behavior | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Anytime you begin to lose stiffness in a static structural analysis, there is always potential for convergence trouble. The sensitivity depends on the application. How localized is the material yielding? How well is the structure constrained?Perhaps the structure is beginning to buckle and non-convergence is a reflection of a physical instability.You could test this theory by\" \/>\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\\\/reply\\\/236331\\\/#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\\\/forums\\\/reply\\\/236331\\\/#listItem\",\"name\":\"Reply To: [Concrete model] Menetrey-Willam model, Softening behavior\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/236331\\\/#listItem\",\"position\":2,\"name\":\"Reply To: [Concrete model] Menetrey-Willam model, Softening behavior\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}}]},{\"@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\\\/reply\\\/236331\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/236331\\\/\",\"name\":\"Reply To: [Concrete model] Menetrey-Willam model, Softening behavior | Ansys Learning Forum\",\"description\":\"Anytime you begin to lose stiffness in a static structural analysis, there is always potential for convergence trouble. The sensitivity depends on the application. How localized is the material yielding? How well is the structure constrained?Perhaps the structure is beginning to buckle and non-convergence is a reflection of a physical instability.You could test this theory by\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/236331\\\/#breadcrumblist\"},\"datePublished\":\"2022-09-26T20:49:44+00:00\",\"dateModified\":\"2022-09-26T20:49:44+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":"Reply To: [Concrete model] Menetrey-Willam model, Softening behavior | Ansys Learning Forum","description":"Anytime you begin to lose stiffness in a static structural analysis, there is always potential for convergence trouble. The sensitivity depends on the application. How localized is the material yielding? How well is the structure constrained?Perhaps the structure is beginning to buckle and non-convergence is a reflection of a physical instability.You could test this theory by","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236331\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236331\/#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\/forums\/reply\/236331\/#listItem","name":"Reply To: [Concrete model] Menetrey-Willam model, Softening behavior"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236331\/#listItem","position":2,"name":"Reply To: [Concrete model] Menetrey-Willam model, Softening behavior","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}}]},{"@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\/reply\/236331\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236331\/","name":"Reply To: [Concrete model] Menetrey-Willam model, Softening behavior | Ansys Learning Forum","description":"Anytime you begin to lose stiffness in a static structural analysis, there is always potential for convergence trouble. The sensitivity depends on the application. How localized is the material yielding? How well is the structure constrained?Perhaps the structure is beginning to buckle and non-convergence is a reflection of a physical instability.You could test this theory by","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236331\/#breadcrumblist"},"datePublished":"2022-09-26T20:49:44+00:00","dateModified":"2022-09-26T20:49:44+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":"Reply To: [Concrete model] Menetrey-Willam model, Softening behavior | Ansys Learning Forum","og:description":"Anytime you begin to lose stiffness in a static structural analysis, there is always potential for convergence trouble. The sensitivity depends on the application. How localized is the material yielding? How well is the structure constrained?Perhaps the structure is beginning to buckle and non-convergence is a reflection of a physical instability.You could test this theory by","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236331\/","article:published_time":"2022-09-26T20:49:44+00:00","article:modified_time":"2022-09-26T20:49:44+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: [Concrete model] Menetrey-Willam model, Softening behavior | Ansys Learning Forum","twitter:description":"Anytime you begin to lose stiffness in a static structural analysis, there is always potential for convergence trouble. The sensitivity depends on the application. How localized is the material yielding? How well is the structure constrained?Perhaps the structure is beginning to buckle and non-convergence is a reflection of a physical instability.You could test this theory by"},"aioseo_meta_data":{"post_id":"236331","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":"content","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":true,"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":"2024-10-28 19:02:47","updated":"2026-07-31 11:38:45","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\tReply To: [Concrete model] Menetrey-Willam model, Softening behavior\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Reply To: [Concrete model] Menetrey-Willam model, Softening behavior","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/236331\/"}],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/236331","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/236331\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=236331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}