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Beginner Viscoelastic Question

Beginner Viscoelastic Question

Beginner Viscoelastic Question

(OP)
I have a bunch of test data for a viscoelastic material and I would like to distill this down to a viscoelastic model in Abaqus without using a custom material subroutine. And quite frankly I am not sure where to start.

Data I have:
TCE vs Temp
Viscosity vs Temp
Cp vs Temp

For now I can ignore bulk modulus but I was wondering if someone could give me some guidance in taking the test data and putting this into a shear relaxation modulus. A fit has already been done to get this into a TNM model so I have the TCE (liquid and and solid), time constant, activation energy, and the parameters of a TNM model.

Is it possible to use this information in a way that would not require a series of custom material/property routines? Or is that really the only way?

Any help is appreciated.
DS

RE: Beginner Viscoelastic Question

Try posting on polymerfem.com The guy there is very helpful.

RE: Beginner Viscoelastic Question

(OP)
Thanks vumat721,

I posted on there a little while ago and they were helpful. I guess this is sort of a fringe topic so there aren't many that have had to deal with it.

Dan

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