Hi jorgen and all,
I have written a UMAT for anisotropic viscoelasticity based on the attached paper and was unable to get the stress relaxation behavior for the example given in the paper.So I reduced no.of terms to one and tried to implement for a simple cantilever beam.
Please help me where i am going wrong.I am in a bit of hurry
I have not been observing a variation in tip displacement due to changing modulus.I have been working on it for long time.
Please help me..
Thanks in advance