Biphasic description of viscoelastic foams by use of an extended Ogden-type formulation

摘要: Soft polymeric foams exhibit distinct relaxation and creep phenomena which in combination with the cellular micro structure result outstanding mechanical characteristics of this type porous materials. It is goal contribution to present an appropriate biphasic continuum model based on Theory Porous Media (TPM) allows description viscoelastic at a suitable means computational costs. To reproduce complex behaviour polymer skeleton extended Ogden-type viscoelasticity formulation embedded into media concept. Thus, macroscopic accounts for all relevant physical properties, i. e. cell structure, moving interacting pore-fluid, intrinsic matrix material.