High-performance finite elements insensitive to severe mesh distortions

题目：High-performance finite elements insensitive to severe mesh distortions

报告人：尚闫博士（航空宇航学院航空航天交叉研究院）

时间：2017年6月21日（周三）10:10 AM

地点：明故宫校区A18-209

主办单位：科协、航空航天交叉研究院、航空宇航学院

报告摘要：

    The finite element method (FEM), one of the most important and efficient CAE tools, has been widely applied in variousengineering and scientific applications.Nevertheless, despite its great success, FEM still suffers from some deficiencies because of its inherent theoretical limitations.For instance, it is well known that the performances of the FEM highly dependent on the mesh qualities. Mesh distortion will not only obviously deteriorate the numerical accuracies but, in extreme cases, even lead to the breakdown of the numerical algorithm. In the past decades, tremendous efforts have been put on developing finite elements with excellent accuracies and high tolerances to mesh distortions. However a complete solution to the problem has yet to emerge.In this talk, we mainly introduce the hybrid element method and the unsymmetric element method, and present several new mesh-immune element models.Numerical benchmarks reveal that they are superior to most other existing element models.

报告人简介：

尚闫，现任南京航空航天大学讲师。2011年6月本科毕业于华中科技大学土木工程与力学学院工程力学系。2016年6月博士毕业于清华大学航天航空学院固体力学研究所。主要研究方向包括高性能有限元理论与应用，板壳结构分析与计算，结构工程中的计算力学问题。