Learning Forum

[pclech]

In the case of a topology optimization study, static input studies work but topology study does not start.

[John Doyle]

Not sure, but I offer a few diagnostic tips:nAre there any other *.out or *.err files saved to the solver directory that might offer clues as to what the issue is?nI am assuming your manufacturing constraints are limited to either member size, pull out and/or am overhang. These are documented as the only supported manufacturing constraints as of R2020-R2 under Level Set Limitation doc. nFrom the image you shared, the Connections Branch is not empty. Is the object under the Connections folder supported by Topo-Opt level set option?nCan you get this to run successfully with Density Based Optimization?nCan you get anything to run with this model (i.e. remove all manufacturing constraints, empty the connections folder and replace the cylindrical constraint with a simple fixed constraint)? nCan you get any other test model to run?n

[pclech]

Hello. nFirst of all thank you for your help. Here are my answers and how I solved my issue.n1°/ From the image you shared, the Connections Branch is not empty. Is the object under the Connections folder supported by Topo-Opt level set option?nAnswer: My error does indeed come from my input data. The material used in the study was configured with non-linear data (plasticity curve). But I had left in Material, Nonlinear Effects --> on. it is a mistake. n