A cohesive surface separation potential

Abstract

this paper presents a form, of the cohesive surface separation potential, which can. produce potential curves by varying a single dimensionless parameter. Results show. that a partial modification of Xu and Needleman's (1994) cohesive surface separation potential makes it possible to present: the other potential curves as a special case as long as: the normal separation, is concerned. The proposed: potential may describe interfacial debonding-crack initiation-and growth-character of materials and, through numerical simulation, provide an insight for the effect of different cohesive surface separation potentials on, the interfacial debonding.