Discussion of multi-cracks problem

The generalized arbitrary cracked problem in an elastic plane is discussed in this paper. Comparing with the classical plane elastic crack model, in the discussion, the problem solving become much easier through modifying some known conditions instead of adding any now known condition. The general exact analytic solution is given here based on this formulation though the problem is very complicated. Furthermore, the stress intensity factors K_I, K_II of the problem are also given.