{"id":365095,"date":"2024-05-01T20:22:28","date_gmt":"2024-05-01T20:22:28","guid":{"rendered":"\/forum\/forums\/reply\/365095\/"},"modified":"2024-05-01T20:22:28","modified_gmt":"2024-05-01T20:22:28","slug":"365095","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/365095\/","title":{"rendered":"Reply To: Hertz, JKR , MG , DMT models in contact mecanics with Ansys Workbench"},"content":{"rendered":"<p>&lt;p&gt;Thanks for the clarification.&nbsp;&lt;\/p&gt;&lt;p&gt;The coulomb friction model used in Ansys does not include local surfacce adhesion effects due to micro material intermingling and entanglement (as described by JKR Theory).&nbsp; Frictional surfaces in Ansys are always free to separate at zero surface pressure.&nbsp; You might be able to achieve something similar to JKR by defining a nonzero cohesion real constant with RMODIF,cid,13, in a command object.&nbsp; See<a href=\"https:\/\/ansyshelp.ansys.com\/account\/secured?returnurl=\/Views\/Secured\/corp\/v241\/en\/ans_ctec\/Hlp_ctec_realkey.html%23strchofr3jla072099\"> Section 3.9<\/a> of the MAPDL Contact Technology Guide for details.&nbsp; If that does not work, you would likely have to write a customized user routine to capture this effect.&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-365095","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=\"Thanks for the clarification. The coulomb friction model used in Ansys does not include local surfacce adhesion effects due to micro material intermingling and entanglement (as described by JKR Theory). Frictional surfaces in Ansys are always free to separate at zero surface pressure. You might be able to achieve something similar to JKR by defining a\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/365095\/\" \/>\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: Hertz, JKR , MG , DMT models in contact mecanics with Ansys Workbench | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"Thanks for the clarification. The coulomb friction model used in Ansys does not include local surfacce adhesion effects due to micro material intermingling and entanglement (as described by JKR Theory). Frictional surfaces in Ansys are always free to separate at zero surface pressure. You might be able to achieve something similar to JKR by defining a\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/365095\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2024-05-01T20:22:28+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2024-05-01T20:22:28+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: Hertz, JKR , MG , DMT models in contact mecanics with Ansys Workbench | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"Thanks for the clarification. The coulomb friction model used in Ansys does not include local surfacce adhesion effects due to micro material intermingling and entanglement (as described by JKR Theory). Frictional surfaces in Ansys are always free to separate at zero surface pressure. You might be able to achieve something similar to JKR by defining a\" \/>\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\\\/365095\\\/#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\\\/365095\\\/#listItem\",\"name\":\"Reply To: Hertz, JKR , MG , DMT models in contact mecanics with Ansys Workbench\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/365095\\\/#listItem\",\"position\":2,\"name\":\"Reply To: Hertz, JKR , MG , DMT models in contact mecanics with Ansys Workbench\",\"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\\\/365095\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/365095\\\/\",\"name\":\"Reply To: Hertz, JKR , MG , DMT models in contact mecanics with Ansys Workbench | Ansys Learning Forum\",\"description\":\"Thanks for the clarification. The coulomb friction model used in Ansys does not include local surfacce adhesion effects due to micro material intermingling and entanglement (as described by JKR Theory). Frictional surfaces in Ansys are always free to separate at zero surface pressure. 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The coulomb friction model used in Ansys does not include local surfacce adhesion effects due to micro material intermingling and entanglement (as described by JKR Theory). Frictional surfaces in Ansys are always free to separate at zero surface pressure. 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The coulomb friction model used in Ansys does not include local surfacce adhesion effects due to micro material intermingling and entanglement (as described by JKR Theory). Frictional surfaces in Ansys are always free to separate at zero surface pressure. 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The coulomb friction model used in Ansys does not include local surfacce adhesion effects due to micro material intermingling and entanglement (as described by JKR Theory). Frictional surfaces in Ansys are always free to separate at zero surface pressure. You might be able to achieve something similar to JKR by defining a","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/365095\/","article:published_time":"2024-05-01T20:22:28+00:00","article:modified_time":"2024-05-01T20:22:28+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: Hertz, JKR , MG , DMT models in contact mecanics with Ansys Workbench | Ansys Learning Forum","twitter:description":"Thanks for the clarification. The coulomb friction model used in Ansys does not include local surfacce adhesion effects due to micro material intermingling and entanglement (as described by JKR Theory). Frictional surfaces in Ansys are always free to separate at zero surface pressure. 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