Abstract
The scientific describing of the crack initiation and crack growth mechanics on bimaterial interfaces is of vital importance for understanding the failure processes in materials like composites and ceramics. An important failure mechanism in fiber or whisker reinforced ceramic composites is the debonding between the matrix and the reinforcing phases. This process of debonding can take place either quasi-statically or dynamically, depending on the loads nature that the composite structure is subjected to. If the interface is weakened by existence of flaws, they can serve as initiators of a crack, which, under adequate circumstances, can propagate in an unstable manner. Such situations lead to necessity of analyzing the dynamic interfacial crack growth. To formulate the mechanism of initiation and dynamic crack growth in bimaterial systems, it is necessary to know the whole 3D structure of the field around the tip of the moving interfacial crack.
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