How to get rid of contact chattering in ansys mapdl?

Ankush Pratap Singh @Ankush_Singh13

09 September 2018 1 10K Report

My simulation is not converging because of contact chattering value which i found is 1.

I am using augmented Lagrangian method with FKN-1, PINB- 0.1, FKT-1, FTOLN- 1, RESULTING PENETRATION TOLERANCE- 0.1669.

any suggestions to reduce contact chattering.

Ankush Pratap Singh

Analysis successfully converges after make these modifications-

FKN- reduces to 0.01

FKT- reduces to 0.1

But results are not a bit satisfactory may be because the reduction in FKN comprises the accuracy of result. So, i need to attain a optimum value of FKN in order to get better combination of accuracy and convergence.

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