{"id":165506,"date":"2023-03-17T09:00:28","date_gmt":"2023-03-17T09:00:28","guid":{"rendered":"\/knowledge\/forums\/topic\/why-does-activation-of-nonlinear-adaptive-meshing-nlad-cause-model-to-take-a-different-convergence-path-even-before-remeshing-occurs\/"},"modified":"2023-07-31T12:31:23","modified_gmt":"2023-07-31T12:31:23","slug":"why-does-activation-of-nonlinear-adaptive-meshing-nlad-cause-model-to-take-a-different-convergence-path-even-before-remeshing-occurs","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-does-activation-of-nonlinear-adaptive-meshing-nlad-cause-model-to-take-a-different-convergence-path-even-before-remeshing-occurs\/","title":{"rendered":"Why does activation of Nonlinear Adaptive Meshing (NLAD) cause model to take a different convergence path even before remeshing occurs?"},"content":{"rendered":"<p>NLAD does not support auto-asymmetric contact behavior or small sliding algorithm.    Hence, if model includes symmetric nonlinear pairs, it is possible that auto-asymmetric is deactivating the current pair when NLAD is off, but keeping both pairs when NLAD is on.    Also, perhaps small sliding is active when NLAD is off, but it is disabled with NLAD is active.  The solve.out file should record these setting.  Check the solve.out file carefully.<\/p>\n","protected":false},"template":"","class_list":["post-165506","topic","type-topic","status-publish","hentry","topic-tag-19-2","topic-tag-mechanical","topic-tag-meshing","topic-tag-modeling-and-meshing","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=\"NLAD does not support auto-asymmetric contact behavior or small sliding algorithm. Hence, if model includes symmetric nonlinear pairs, it is possible that auto-asymmetric is deactivating the current pair when NLAD is off, but keeping both pairs when NLAD is on. Also, perhaps small sliding is active when NLAD is off, but it is disabled with\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-does-activation-of-nonlinear-adaptive-meshing-nlad-cause-model-to-take-a-different-convergence-path-even-before-remeshing-occurs\/\" \/>\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=\"Why does activation of Nonlinear Adaptive Meshing (NLAD) cause model to take a different convergence path even before remeshing occurs? | Ansys Knowledge\" \/>\n\t\t<meta property=\"og:description\" content=\"NLAD does not support auto-asymmetric contact behavior or small sliding algorithm. Hence, if model includes symmetric nonlinear pairs, it is possible that auto-asymmetric is deactivating the current pair when NLAD is off, but keeping both pairs when NLAD is on. Also, perhaps small sliding is active when NLAD is off, but it is disabled with\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/why-does-activation-of-nonlinear-adaptive-meshing-nlad-cause-model-to-take-a-different-convergence-path-even-before-remeshing-occurs\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2023-03-17T09:00:28+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2023-07-31T12:31:23+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Why does activation of Nonlinear Adaptive Meshing (NLAD) cause model to take a different convergence path even before remeshing occurs? | Ansys Knowledge\" \/>\n\t\t<meta name=\"twitter:description\" content=\"NLAD does not support auto-asymmetric contact behavior or small sliding algorithm. Hence, if model includes symmetric nonlinear pairs, it is possible that auto-asymmetric is deactivating the current pair when NLAD is off, but keeping both pairs when NLAD is on. 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