Author(s)

A.M. Yan & H. Nguyen-Dang

Abstract

In this paper, the interaction of multiple cracks and their fatigue crack propagation are investigated for a plane elastic problem. The stress intensity factors are calculated by the dual boundary element method with J-integral technique. The real fatigue extension path of cracks is simulated by an incremental linear extension using the maximum principle stress criterion. Examples of geometries with edge and embedded cracks are analysed. It is noticed that the interaction of multiple cracks depends on loading and geometric conditions of structures. 1 Introduction The multiple crack fatigue problems, especially the interaction and propagation tendency of multiple cracks catch the attention of scientists. One notices that in some case the failure of the structure is caused by t

Keywords