Abstract:

In this paper, the eigen function expansions of displacements and stress of bi-metal laminates with interface cracks are obtained. Furthermore) the stress intensity factors are determined by the variational method. There are only line integrals in the variational equations due to the previous satisfaction of all basic equations. The computations show-that this method of solution has the advantages of rapid convergency and time-saving. The results obtained by this method for homogeneous material agree with the known ones very well.

Key words: interface laminate crack, bi-metal laminate, glued joint