User Elements in FEAPpv

[CompEng]

Dear FEAP team,

I have written my own element for a hyperelastic anisotropic media and I would like to know whether I can use this element in FEAPpv? If yes, how can I handle that?
When I run FEAPpv I receive the following error:
Elmt1: *Warning* Dummy subroutine called

Thanks in advance,

[Prof. R.L. Taylor]

generally, when feap is installed you have two builds:

1.) Builds an archive/library with all the program (except the feappv.f file).

2.) A main build which adds the feappv.f to the archive. (this is in the /main directory)

User modules are added to the build 2.)  and replace the ones in the archive automatically.

When you get the warning you cite it means you put the new module incorrectly and you are still getting the original functions.

If the error persists please let us know what operating system you are using and the version of feappv/feap.