A Finite Element Method for Modeling Edge Effects in Composite Laminates with Different Ply Orientations

IF 1 Q4 ENGINEERING, CIVIL

Jordan Journal of Civil Engineering Pub Date : 2022-12-01 DOI:10.14525/jjce.v16i4.39

Karim S. Numayr, Ayman N. Ababneh, Hashem K. Almashaqbeh

引用次数: 0

Abstract

A finite element (FE) method is used for modeling edge effects in composite laminates with different ply orientations. Two types of three-dimensional isoperimetric FE methods have been used. One in the interior region has standard linear shape functions, while the other in the exterior region has special shape functions for which an exponential variation is derived using the perturbation technique. The exponential shape functions are introduced to an originally written FE program which uses special mesh generation and numerical integration, as well as other subroutines. The proposed FE solution is found to be in good agreement with the solutions available in the literature. KEYWORDS: Finite-element modeling, Perturbation technique, Laminated composites, Edge effect, Delamination

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不同铺层方向复合材料层合板边缘效应的有限元模拟

采用有限元方法对不同铺层方向复合材料层合板的边缘效应进行了数值模拟。采用了两种三维等周有限元方法。一个在内部区域具有标准的线性形状函数，而另一个在外部区域具有特殊的形状函数，使用微扰技术推导出指数变化。将指数形函数引入到一个原始编写的有限元程序中，该程序使用了特殊的网格生成和数值积分，以及其他子程序。提出的有限元解被发现与文献中可用的解很好地一致。关键词:有限元建模，微扰技术，层合复合材料，边缘效应，分层

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来源期刊

Jordan Journal of Civil Engineering ENGINEERING, CIVIL-

CiteScore

2.10

自引率

27.30%

发文量

期刊介绍： I am very pleased and honored to be appointed as an Editor-in-Chief of the Jordan Journal of Civil Engineering which enjoys an excellent reputation, both locally and internationally. Since development is the essence of life, I hope to continue developing this distinguished Journal, building on the effort of all the Editors-in-Chief and Editorial Board Members as well as Advisory Boards of the Journal since its establishment about a decade ago. I will do my best to focus on publishing high quality diverse articles and move forward in the indexing issue of the Journal.