A Crack and Debonding at the Edge of Bonded Bi-material Half Planes under Couples

Abstract

The stress states of partially bonded bi-material half planes with an edge crack under couples at infinity were analyzed by using a rational mapping function and complex stress functions. Stress distribution and stress intensity factors were obtained. Stress intensity of debonding was related to the energy release rate, and re-extension of debonding after crack initiation was discussed.