Time-dependent modeling and experimental characterization of foamed EPDM rubber

Abstract Foamed rubber with a mixed cellular microstructure is compressible material used for various sealing applications in the automotive industry. For technical optimization, sufficiently precise model required. Here description porous elastic and viscoelastic response of low density foamed proposed adapted to ethylene propylene diene monomer (EPDM)-based rubber. The based on spherical shell which homogenized an analytical also numerical manner. A contribution accounts time-dependence material’s response. derived constitutive implemented finite element software calibrated experimentally multi-step relaxation tensile tests EPDM