{"id":373818,"date":"2024-07-26T19:43:59","date_gmt":"2024-07-26T19:43:59","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/stabilizing-fea-analysis-for-applied-pressure-in-ansys\/"},"modified":"2024-07-26T20:33:39","modified_gmt":"2024-07-26T20:33:39","slug":"stabilizing-fea-analysis-for-applied-pressure-in-ansys","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/stabilizing-fea-analysis-for-applied-pressure-in-ansys\/","title":{"rendered":"Stabilizing FEA Analysis for Applied Pressure in ANSYS"},"content":{"rendered":"

Hi,<\/p>\n

I’m running a 2-way FSI analysis that works fine when I use an under-relaxation factor and a very small RMS convergence target. Now, I want to run just the FEA (basically applying my desired pressure, let’s say 2000 Pa), but it keeps crashing<\/strong>.<\/p>\n

<\/a><\/p>\n

I’ve tried changing the time step and mesh, but since these settings already work in FSI, I don’t think I should change them again.<\/p>\n

Is there anything in the analysis that I can adjust to stabilize it<\/strong>? Perhaps a way to insert pressure as a sinusoidal function and stabilize it using settings similar to under-relaxation factor or RMS convergence but in the structural module (FEA)?<\/p>\n

<\/a><\/p>\n

Im not sure how to set these up. anyine knows how to test? where to begin? for aorta\/artery lumen <\/p>\n","protected":false},"template":"","class_list":["post-373818","topic","type-topic","status-closed","hentry","topic-tag-fea","topic-tag-stabilization","topic-tag-two-way-fsi-1"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t