An interface shell element for coupling non-matching quadrilateral shell meshes

被引：11

作者：

Thuan Ho-Nguyen-Tan ^{[1
]}

Kim, Hyun-Gyu ^{[1
]}

机构：

[1] Seoul Natl Univ Sci & Technol, Dept Mech & Automot Engn, 232 Gongneung Ro, Seoul 01811, South Korea

来源：

COMPUTERS & STRUCTURES | 2018年 / 208卷

基金：

新加坡国家研究基金会;

关键词：

Interface shell element; Non-matching meshes; Variable-node elements; Transverse shear locking; Membrane locking; PLATE-BENDING ELEMENTS; VARIABLE-NODE ELEMENTS; ASSUMED NATURAL STRAIN; ONE-POINT QUADRATURE; FINITE-ELEMENT; MITC4+SHELL ELEMENT; INCOMPATIBLE MODES; VIBRATION ANALYSIS; BUCKLING ANALYSIS; MEMBRANE LOCKING;

D O I：

10.1016/j.compstruc.2018.07.008

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

In this study, a novel interface shell element (ISE) is developed based on a variable-node element formulation to couple non-matching quadrilateral shell meshes. Shape functions for ISEs are explicitly presented in a polynomial form with the use of appropriate supports of weight functions in moving least square (MLS) approximation. Assumed natural strains in the form of the mixed interpolation of tensorial components (MITC) approach are employed to avoid the transverse shear locking when the thickness of shell tends to zero. Moreover, an assumed membrane strain field defined over quadrilateral subdomains subdividing an ISE is used to alleviate the membrane locking in curved ISEs. Numerical experiments show the effectiveness and efficiency of ISE for connecting dissimilar quadrilateral shell meshes at a common interface. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：151 / 173

页数：23

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