A hierarchic 3D finite element for laminated composites

被引:22
作者
Kuhlmann, G
Rolfes, R
机构
[1] DLR, Inst Struct Mech, D-38022 Hamburg, Germany
[2] Airbus Germany, Stress Dept, Hamburg, Germany
关键词
finite element; composite; transverse stresses; interlaminar shear; 3D element; hierarchic;
D O I
10.1002/nme.1060
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this paper a new 3D multilayer element is presented for analysis of thick-walled laminated composites. This element uses two steps to calculate the full stress tensor. In the first step the in-plane stresses are computed from the material law using a displacement approximation, and then the transverse stresses are calculated from the 3D equilibrium equations. Since the 3D equilibrium equations require high-order interpolation functions, a hierarchic interpolation of displacements is used. The new element is compared with existing ones, e.g. from MSC.MARC. Copyright (C) 2004 John Wiley Sons, Ltd.
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页码:96 / 116
页数:21
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