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

報告人：尚閆博士（航空宇航學院航空航天交叉研究院）

時間：2017年6月21日（周三）10:10 AM

地點：明故宮校區(qū)A18-209

主辦單位：科協(xié)、航空航天交叉研究院、航空宇航學院

報告摘要：

    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.

報告人簡介：

尚閆，現(xiàn)任南京航空航天大學講師。2011年6月本科畢業(yè)于華中科技大學土木工程與力學學院工程力學系。2016年6月博士畢業(yè)于清華大學航天航空學院固體力學研究所。主要研究方向包括高性能有限元理論與應用，板殼結(jié)構(gòu)分析與計算，結(jié)構(gòu)工程中的計算力學問題。