HYPERSINGULAR BOUNDARY-ELEMENT FORMULATION FOR REISSNER PLATES

In this work, the hypersingular boundary element formulation for plate bending analysis based on Reissner theory is presented. First order T aylor expansion are used to deal with the strong singularity O(1/r), w hereas, rigid body considerations together with the Taylor expansion a re used to compute the hypersingular kernels O(1/r(2)). The plate boun dary is discretised into quadratic isoparametric discontinuous boundar y elements to satisfy the continuity requirements for the boundary unk nowns. Several examples are tested, including thin and thick plates. T he results show a good agreement with both the analytical solutions an d the corresponding results for the standard displacement boundary ele ment formulation. (C) 1998 Elsevier Science Ltd. All rights reserved.