“…Bonnet and Bui [1993], Crouch and Selcuk [1992], Cruse [1988], Chang and Mear [1995], Gray, Martha, and Ingraffea [1990], Guimardes and Telles [1994], Hong and Chen [1988], and Paulino [1995]. Although successful, the common problem for these methods is that, when employed in conjunction with a collocation approximation, a C' continuous smoothness constraint is necessarily imposed on the boundary in the neighborhood of the integration point.…”