Hi
I am a graduate student at University of Kansas. I have been trying to model the mechanical testing I did for one of my projects. I am trying to simulate a indentation test, first part of which includes compressing the tissue to 15% strain at a rate of 0.15%/sec and the second part of the test allows the tissue to relax for a period of 1000 seconds.
When I try to model the experiment, the simulation fails to converge at 36 seconds as negative jacobian is detected. I have tried reducing the time step but it doesn't seem to solve the problem.
I would greatly appreciate if you could have a look at my files and give me some tips/pointers to fix the problem.
Regards
Vineet Gupta
I am a graduate student at University of Kansas. I have been trying to model the mechanical testing I did for one of my projects. I am trying to simulate a indentation test, first part of which includes compressing the tissue to 15% strain at a rate of 0.15%/sec and the second part of the test allows the tissue to relax for a period of 1000 seconds.
When I try to model the experiment, the simulation fails to converge at 36 seconds as negative jacobian is detected. I have tried reducing the time step but it doesn't seem to solve the problem.
I would greatly appreciate if you could have a look at my files and give me some tips/pointers to fix the problem.
Regards
Vineet Gupta
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