Singularity parameter determination in adhesively bonded lap joints for use in failure criteria

Abstract

A procedure for the singularity characterization of anisotropic multimaterial corners which typically appear in adhesively bonded lap joints between metals and composites is presented and implemented in the present work. The characterization in terms of characteristic exponents (stress singularities), characteristic functions and generalized stress intensity factors allows the definition of an oriented test program in order to analyze the suitability of a singularity based failure criterion for structures of this type.