Hello everyone,

I am trying to get creep data from a viscoelastic material done in Abaqus, using prony series:

g1=0.2 k1=0.2 t1=0.1

g2=0.1 k2=0.1 t2=0.2

(elastic : E=207GPa v=0.27)

The geomtry I used is a simple slab : 1*0.3*0.03 (plane stress)

My problem is that the results I get from Abaqus are 30% smaller than the theory I plotted on Excel. The curve is exactly the same except the values are smaller in Abaqus.

At t=0, for the instantaneous elasticity i should have u=4.83e-9m but Abaqus gives 3.37445E-9m

I assume Abaqus is using the Maxwell model so I dont get why my results arent matching with Abaqus

Im quite new on Abaqus, any help would be greatly appreciated ðŸ™‚

Lorenzo Bercelli