2. Reference solution

2.1. Calculation method used for the reference solution

The test is based on the results from the Abaqus calculation code. We note that the viscous flow in the latter is modelled by introducing a coefficient broken down into Prony series on the isochoric and volumetric parts of the second Piola Kirchoff tensor. In the case of law ELAS_HYPER_VISC, the viscous flow only concerns the isochoric part of the stress tensor. This difference in implementation should not impact the results from the two codes given the very low compressibility of the material.

2.2. Benchmark results

We ensure that the equivalent Von Mises deformation and stress correspond to the values obtained from the calculations to within \(1\%\), at two different times.

2.3. Bibliographical references

Report EC2 modeling, RAP - EC2 -02112-2-A.pdf (06/02/2024) -Simulation of the mechanical behavior of an elastomer joint - Study of the integration of a viscoelastic behavior law