Help Writing Subroutine

[jdmay]

I am attempting to write an uhyper routine for three materials. Abaqus is returning a "problem during compilation" error. Can someone help find the error in my code?

 

[johnhors]

Your code starts with "PROGRAM MAIN", but this main routine ends with a RETURN statement, that is not correct.

You assign double precision values to ZERO,ONE,TWO,and THREE, but double precision has not been declared for these or any other variables.

Many variables like C10, C01, C11, C20, C30, D1 are declared and never used, and many routine arguments are also not used.

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