Dear All

I trying simulate composite damages by using 3d hashin criteria VUMAT subroutine but bellow error occur:

"hashin.obj : error LNK2019: unresolved external symbol copyr referenced in function vumat.R

hashin.obj : error LNK2019: unresolved external symbol eig33anal referenced in function vumat.R

hashin.obj : error LNK2019: unresolved external symbol betadamping3d referenced in function vumat.R

hashin.obj : error LNK2019: unresolved external symbol energyinternal3d referenced in function vumat.R

explicitU.dll : fatal error LNK1120: 4 unresolved externals

Abaqus Error: Problem during linking - Single Precision Abaqus/Explicit User Subroutines.

This error may be due to a mismatch in the Abaqus user subroutine arguments.

These arguments sometimes change from release to release, so user subroutines

used with a previous release of Abaqus may need to be adjusted."

I use Abaqus 2017 that linked with Microsoft Visual Studio Ultimate 2013 Update 5 and Intel Parallel Studio XE 2017 Update 8

please help me for solve this problem.

thanks a lot