segmantation fault caused by plast_apl

[JStorm]

The return mapping algorithm in the implementation of Hill's plasticity model (plast_apl, FEAP 8.4) raises an error, when the maximum iteration number is reached (100). Than a message is printed out and plstop is called. But somehow FEAP is not terminating. I get the same error message again and again until the segmentation fault is raised. Forcing the termination by executing "stop" instead of calling plstop works as expected.

[JStorm]

some more informations from the debugger:

• segmentation fault is caused by stack overflow due to extensive recursion
• recursion is caused by "last tplot" in plstop, where ptimpl is called and then formfe, etc.

[JStorm]

found the solution, due to comments in the FEAP code  : prob_on = .true. musst be set before calling ptimpl in plstop.

[Prof. R.L. Taylor]

Thank you