ABAQUS Topology Optimization Error

[AlanSYH_]

Hello all,

I have designed a concrete beam for 3 Point bending test. The material in all 4 simulations are the same. BCs are also the same, with a downward displacement of the roller by 0.42mm. Optimization settings are also the same with objective of minimizing strain energy, I only varied the Volume Fraction from a fraction of the initial <= 30%, 50%, 70% and 80%.

The optimization worked for 30% VF, but flagged as ERROR for the other cases as shown in the picture. Would really appreciate if someone knows how to resolve this, thank you so much in advance.



This is the error that is shown on the solver.

[13:56:28|tosca_driver] Success check string was not found in the solver output file

[13:56:28|tosca_driver] Module abaqus failed

[13:56:43|tosca_driver] Tosca Structure failed to run the optimization task

Optimization process failed with an error.

 

[FEA way]

[13:56:28|tosca_driver] Module abaqus failed

Look for errors in logs from Abaqus jobs submitted by Tosca.

 

[AlanSYH_]

Look for errors in logs from Abaqus jobs submitted by Tosca.

Which log file exactly? I tried looking around but had no luck, there are so many log files & I got lost looking at them… sorry I’m relatively new with Abaqus.

 

[FEA way]

Which log file exactly?

Look for the last Abaqus job (the one that apparently failed). Errors can be found mainly in files with extensions .dat and .msg.