Time-dependent modeling and experimental characterization of foamed EPDM rubber

被引：8
|
作者：
Buchen, Stefan [1 ]
Kroeger, Nils Hendrik [2 ]
Reppel, Thomas [1 ]
Weinberg, Kerstin [1 ]
机构：
[1] Univ Siegen, Chair Solid Mech, Paul Bonatz Str 9-11, D-57076 Siegen, Germany
[2] Deutsch Inst Kautschuktechnol eV, Eupener Str 33, D-30519 Hannover, Germany
来源：
CONTINUUM MECHANICS AND THERMODYNAMICS | 2021年 / 33卷 / 04期
关键词：
Foamed rubber; Spherical shell; Hyperelastic model; Viscoelastic model; Abaqus user material; CAVITATION;
D O I：
10.1007/s00161-021-01004-4
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Foamed rubber with a mixed cellular microstructure is a compressible material used for various sealing applications in the automotive industry. For technical optimization, a sufficiently precise material model is required. Here a material description for the porous elastic and viscoelastic response of low density foamed rubber is proposed and adapted to ethylene propylene diene monomer (EPDM)-based rubber. The elastic description is based on a spherical shell model which is homogenized in an analytical and also in a numerical manner. A viscoelastic contribution accounts for the time-dependence of the material's response. The derived constitutive model is implemented in a finite element software and calibrated experimentally with multi-step relaxation tensile tests of foamed EPDM rubber.
引用
收藏
页码：1747 / 1764
页数：18
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