EFG APPROXIMATION WITH DISCONTINUOUS DERIVATIVES

A technique for incorporating discontinuities in derivatives into mesh less methods is presented. The technique enriches the approximation by adding special shape functions that contain discontinuities in deriva tives. The special shape functions have compact support which results in banded matrix equations. The technique is described in element-free Galerkin context, but is easily applicable to other meshless methods and projections. Numerical results for problems in one and two dimensi ons are reported. (C) 1998 John Wiley & Sons, Ltd.