Hello, I run two similar NASTRAN solid composite elements models with sol 400 and LNSTATICS and I obtain different stress results. Why is that? Below are details about the models
The only difference between the two models is that for one, I specify a failure model thanks to "MATF" and ask for the strength ratios with "PARAM,SRCOMPS,YES".
Doing that, I obtain a 40% higher stress.
I have made sure that SR>>1 so that progressive failure or yielding can't be the cause of that.
I also compared the files to ensure the mentioned differences were the only one.
Yes, I am aware that I should use ASTN, this is precisely done in order to compare the two. But since both problems are using SLCOMP L, shouldn't they give the same results?
Yes, I am aware that I should use ASTN, this is precisely done in order to compare the two. But since both problems are using SLCOMP L, shouldn't they give the same results?