FMM(Fast Mutlipole Method) has been developed as a technique to reduce the computational time and memory requirements in solving big sized multibody problems. This paper applies FMM to elastostatic crack problems in 3D, discretizing BIE (boundary integral equation) with piecewise constant shape functions. The resulting algebraic equation is solved with GMRES (generalized minimun residual method). It is shown that FMM is more efficient than the conventional method.
FMM, BIE, GMRES