Paper Title:

Interfacial Fracture Strength of Viscoelastic Inclusions in a Polymer Blend

Periodical Advanced Materials Research (Volume 502)
Main Theme Progress in New Materials and Mechanics Research
Edited by Xiancang Deng and Xufeng Dong
Pages 17-22
DOI 10.4028/www.scientific.net/AMR.502.17
Citation Ming Hua Zhang et al., 2012, Advanced Materials Research, 502, 17
Online since April, 2012
Authors Ming Hua Zhang, Jin Tao Lei, Jian Kang Chen
Keywords Damage Mechanic, Debonding, Interface Fracture, Polymer Matrix Composite
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Abstract

The interfacial fracture strength in polymer blends is investigated in this study. The constitutive relations of polymeric matrix and inclusions are both approximately described by linear viscoelastic models. It is assumed that the interfacial de-boding between inclusions and matrix is dominantly induced by the hydrostatic component of remote stress. Based on the assumption, the interfacial de-bonding of a viscoelastic inclusion embedded in an infinite polymeric matrix is analyzed. It is found that the size of inclusion will strongly affect the magnitude of critical stress, and the effect of Poisson’s ratio on the de-bonding is so small that can be ignored.