Material model not supported

[Faezeh]

Hi,
Currently I am using a user element (Fiber-beam element) in the FEAPpv and I have added all relevant files to the project including a Umesh.f90 file. To avoid the conflict I removed the umesh files from the library build which were stored during installation process.
After compiling the files and executing FEAPpv, I tried an example. But the programme terminates with the message:
“Programme terminated with exit zero code 0. Exit window?”
In the output file I get the message:

*** Material Model not supported ***

I would appreciate if you could guide me why I get the message and how it could be resolved.

Thank you,
Faezeh

[Prof. R.L. Taylor]

This does not look like a FEAP message.  It is hard to tell where you have gone wrong.  Post your developements and we can check a bit.  But we do not support user developments in general.