Asymptotic Fields in Adhesive Fracture

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Abstract
This paper presents the asymptotic singular fields associated with the fracture analysis of adhesive joints and the micromechanics of adhesive failure. The fracture parameters used in adhesives are examined and their validity and use in applications is evaluated. Contrary to conventional fracture mechanics of homogeneous media the asymptotic field in most adhesive fracture is a function of the following: the adhesive and adherend properties, the dimensionality of the crack geometry, and their relationship to the interface. The Finite Element Iterative Method (FEIM) is used in analyzing the asymptotic fields. The results of the singularities for interfacial cracks of various geometries and material properties are presented and discussed in relation to adhesive failures.

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