{"id":308520,"date":"2023-09-26T03:34:44","date_gmt":"2023-09-26T03:34:44","guid":{"rendered":"\/forum\/forums\/topic\/maximum-eqv-stress-spot-differences-between-discovery-and-mechanical\/"},"modified":"2023-09-26T03:34:44","modified_gmt":"2023-09-26T03:34:44","slug":"maximum-eqv-stress-spot-differences-between-discovery-and-mechanical","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/maximum-eqv-stress-spot-differences-between-discovery-and-mechanical\/","title":{"rendered":"Maximum Eqv. Stress Spot Differences between Discovery and Mechanical"},"content":{"rendered":"

Hi, all.<\/p>\n

I was in the process of reviewing the Discovery results when I came across something unusual.<\/p>\n

I was reviewing the results using the Piston Crank example provided by Discovery Sample, and I noticed that the location of the maximum stress predicted by Discovery, as shown in the image below, is completely different from what is calculated in Mechanical.<\/p>\n

<\/p>\n

<\/p>\n

The first image represents the stress results obtained with the default fidelity settings, while the second image shows the stress results when using maximum fidelity settings.<\/p>\n

While the stress trends may appear similar, the crucial point is that the location of the maximum stress occurrence is entirely different. This issue persists even when maximizing the fidelity, and interestingly, similar results are obtained even when performing the analysis in Refine mode.<\/p>\n

 <\/p>\n

I am currently using a 4GB graphics card, and the results in the above image were obtained using the default fidelity settings.<\/p>\n

Furthermore, I also tried verifying this with a different model, not using the Discovery sample, and while the overall stress trends appear similar, it was confirmed that the location of maximum stress differs from that of Mechanical.<\/p>\n

I’d like to understand why these differences are occurring despite using the same model, contact conditions, and boundary conditions. Additionally, I’m curious to know why the results in Refine mode also differ from Mechanical even though they use the same solver.<\/p>\n

I appreciate a detailed response.<\/p>\n

 <\/p>\n

Best Regards,<\/p>\n

Jugyeong Shin.<\/p>\n","protected":false},"template":"","class_list":["post-308520","topic","type-topic","status-closed","hentry"],"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