Abstract
The relation between the non-Gaussian molecular chain network structure and entanglement of chains and a simple evolution equation of the number of entanglement of chains during the deformation process are developed to cover a wide class of deformation processes of polymeric materials which manifest remarkable anisotropy according to the orientation of molecular chains. With the generalized Argon double-kink model of the intermolecular resistance, a three-dimensional constitutive equation is developed and the validity of the proposed constitutive equation has been examined through the comparison between the predicted results and experimentally obtained results. Application of the proposed constitutive equation to the prediction of deformation behavior of tension of polymeric materials is discussed.
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