How can I perform this convergence test? 1

[drennon236]

I have to calibrate the penalty stiffness using convergence of maximum compressive and tensile stress in the grout.
I am working with a grouted joint model, which consists of three hollow cylindrical models as shown below:

I have trouble understanding how penalty stiffness relates to the maximum compressive and tensile stress.

 

[FEA way]

That’s unusual form of convergence study but it means that you should adjust penalty stiffness until it stops influencing stress results significantly.