{"id":304782,"date":"2023-09-04T08:56:19","date_gmt":"2023-09-04T08:56:19","guid":{"rendered":"\/forum\/forums\/topic\/non-convergence-issue-for-mohr-colulomb-soil-model-for-a-cohesionless-soil\/"},"modified":"2023-09-04T08:56:19","modified_gmt":"2023-09-04T08:56:19","slug":"non-convergence-issue-for-mohr-colulomb-soil-model-for-a-cohesionless-soil","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/non-convergence-issue-for-mohr-colulomb-soil-model-for-a-cohesionless-soil\/","title":{"rendered":"Non Convergence issue for Mohr colulomb Soil model for a cohesionless soil"},"content":{"rendered":"<p>Hi, I have developed a soil block of volume 8mx8mx8m in ansys workbench static structural with following engineering properties<img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/09\/04-09-2023-1693817179-Screenshot (365).png\" alt=\"\"><\/p>\n<p>Now after Meshing and providing Boundary condition by restraining the block in the X and Y direction and applying a fixed support in the bottom (pic attached below), I am applying gravity load but because I want the soil to be already in a consolidated state hence it should not deform upon appplying gravity but since it is showing significant deformation. To prevent this i&#8217;m writing an insitate command snippet as following:<\/p>\n<p>SOLU<br \/>! SET AN INITIAL Overburden stress which INCREASES WITH DEPTH<br \/>! INISTATE, DEFINE, ID, EINT, , &#8211;, FuncName, C1, C2, &#8230;, C12<br \/>INISTATE,SET,DATA,FUNC<br \/>INISTATE,SET,DTYP,STRE<br \/>c1=0<br \/>c2=-6.537916667-6<br \/>c3=0<br \/>c4=-6.537916667-6<br \/>c5=0<br \/>c6=-1.961375e-5<br \/>c7=0<br \/>c8=0<br \/>c9=0<br \/>c10=0<br \/>c11=0<br \/>c12=0<br \/>INISTATE,SET,CSYS,0<br \/>INISTATE,DEFINE,ALL,,,,LINZ,c1,c2,c3,c4,c5,c6,c7,c8,c9,c10,c11,c12<\/p>\n<p>But once I apply this my model no longer converges but it does so for the Engineering Property where Cohesion value in Mohr-Coulomb property is significant. Please could you guide me how to solve the error. Also for a multilayered soil deposit the inistate comand snippet that I wrote wont suffice in that instance what procedure should I follow if want deformation to be nil. <img decoding=\"async\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2023\/09\/04-09-2023-1693817576-Screenshot (366).png\" alt=\"\"><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"template":"","class_list":["post-304782","topic","type-topic","status-closed","hentry","topic-tag-static-structural"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Hi, I have developed a soil block of volume 8mx8mx8m in ansys workbench static structural with following engineering propertiesNow after Meshing and providing Boundary condition by restraining the block in the X and Y direction and applying a fixed support in the bottom (pic attached below), I am applying gravity load but because I want\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" 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