Hello all, 

We are working on to build a FEA model involving hyperelastic materials at their glass transition temperature (for example -40°C). To facilitate our work, we have some queries on this topic as follows:  

• How can we provide viscoelastic properties in Abaqus at different temperatures (23°C and -40°C) under Prony series (both shear and volumetric relaxation)?

• Which type of material properties required to simulate hyperelastic material at glass transition temperature (-40°C for example HNBR - (Hydrogenated Nitrile Butadiene Rubber))?

Analysis type: Static structural - durability of rubber during assembly process (like crimping/compression) with steel parts with friction coefficient of 0.2

Analysis steps:

Step – 1:   23°C (Assembly)

Step – 2:  -40°C

Step – 3:   23°C

Evaluation criteria: EE and contact pressure

Abaqus version - 2024 HF1

Thanks, 

Vignesh R