Experimental investigations of spontaneous bimaterial interfacial fractures

Kaiwen Xia,Ares Rosakis,Carl-Ernst Rousseau

doi:10.2140/jomms.2008.3.173

Abstract

Experimental investigations of spontaneous bimaterial interfacial fractures

Highlights

Interfacial fracture has long been identified as one of the primary causes of failure in layered materials and adhesive joints, and has received much scrutiny [Hutchinson and Suo 1992]
The bilaterally propagating spontaneous fracture occurs at two different speeds
As is the case for these earlier results, this increase of fracture energy with crack length is consistent with the observation of constant crack speeds and time independent loading, which implies that the dynamic energy release rate is related to the equivalent static energy release rate through the multiplication of a universal function depending only on the fracture velocity [Yang et al 1991]

Summary

Introduction

Interfacial fracture has long been identified as one of the primary causes of failure in layered materials and adhesive joints, and has received much scrutiny [Hutchinson and Suo 1992]. Deng [1993] performed a steady-state asymptotic analysis for interfacial cracks that resulted in the establishment of higher-order terms associated with the bimaterial crack tip stress field.

Results

Conclusion