{"id":306888,"date":"2023-09-14T23:01:30","date_gmt":"2023-09-14T23:01:30","guid":{"rendered":"\/forum\/forums\/topic\/plastic-strain-increment-computation\/"},"modified":"2023-09-14T23:01:30","modified_gmt":"2023-09-14T23:01:30","slug":"plastic-strain-increment-computation","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/plastic-strain-increment-computation\/","title":{"rendered":"Plastic Strain Increment Computation"},"content":{"rendered":"<p>Hi All,<\/p>\n<p>I am reading up on the JH2 model for ceramics and trying to understand how the plastic strain increment is calculated. From literature, it says, &#8220;the plastic strain increment is the plastic strain during a cycle of integration&#8221;. I&#8217;m assuming that&#8217;s integrating the equivalent plastic strain rate, but then how does LS-DYNA compute the equivalent plastic strain rate using the JH2 model?<\/p>\n<p>I found another resource says that for the JH2 model, the plastic strain incremement can also be computed via the current equivalent stress state and the radial return algorithm. If that&#8217;s the case, where does the hardening modulus get derived from in the JH2 model, if at all?&nbsp;<\/p>\n<p>Clarification is greatly appreciated.<\/p>\n<p>PY<\/p>\n","protected":false},"template":"","class_list":["post-306888","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi All,I am reading up on the JH2 model for ceramics and trying to understand how the plastic strain increment is calculated. 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