抄録
The contribution is concerned with constitutive modeling of finite viscoelasticity in rubbery polymers. Based on experimental observations, the overall free energy is additively decomposed into the equilibrium and viscous non-equilibrium parts. The elastic response of the material is modeled by the recently proposed non-affine micro-sphere model. The effective constitutive modeling of the superimposed viscous response is essentially one-dimensional and related to a space orientation of a chain associated with a local point on the micro-sphere. The recent approach which is the discrete distribution of the microscopic internal variable fields is approximated by the efficient storage in the form of a second-order tensor that can be looked upon as a truncated Fourier representation of a continuous field. This paper refers the recent paper Miehe and Goktepe, and shows the numerical result of one unit element in cyclic test.
