ABSTRACT
In many finite element simulations rubber materials are commonly assumed to be nearly incompressible by applying a high ratio between compression modulus and shear modulus. The compression modulus is commonly given as a constant value. In reality this assumption is not fully correct. Influencing factors like the compressibility of the included filler or trapped air can lead to a notably change of the compression modulus during mechanical loading. The focus of this work is on the estimation of the cyclic evolution of the compression modulus for a technical EPDM by using cyclic volumetric compression tests.
