Abstract:

Using the Green’s functions，the extended general displacement solutions of threedimensional crack problem in electro magneto thermo elastic multiphase composites under extended loads are analyzed by boundary element method. Then，this crack problem is reduced to solving a set of hypersingular integral equations coupled with boundary integral equations. The singularity of the extended discontinuity displacement around the crack front terminating at the interface is obtained with the main-part analysis method of hypersingular integral equations.

Key words: electromagnetothermoelastic,  , threedimensional , crack,  , hypersingular , integral , equations,  , stress , intensity , factor