边缘裂纹对功能梯度材料层包围孔周围应力集中的影响

Q2 Materials Science

Engineering Solid Mechanics Pub Date : 2022-01-01 DOI:10.5267/j.esm.2022.6.005

Vikas Goyat, S. Verma, R. K. Garg

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引用次数: 4

摘要

本文研究了受单轴拉伸载荷作用的无限板中，边缘裂纹对功能梯度材料(FGM)包围的圆孔周围应力集中的影响。采用扩展有限元法(XFEM)进行了数值研究。本文分析了两种情况，即整个板由径向FGM组成和均匀材料板在孔周围有径向FGM层。女性生殖器切割的杨氏模量按指数和幂律函数变化。给出了应力强度因子(SIF)和应力集中因子(SCF)与归一化裂纹长度、杨氏模量比、FGM层厚度和幂律指数的关系。观察到，在边缘裂纹存在的情况下，FGM层情况下孔周围的SCF比FGM板情况低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Effect of an edge crack on stress concentration around hole surrounded by functionally graded material layer

The present work aims to investigate the effect of an edge crack on the stress concentration around the circular hole surrounded by Functionally Graded Material (FGM) in an infinite plate subjected to uniaxial tensile load. The numerical investigation has been carried out using Extended Finite Element Method (XFEM). Two cases have been analysed in this work, i.e. the whole plate made up of radial FGM and homogeneous material plate having radial FGM layer around the hole. Young’s modulus of FGM varies according to exponential and power law function. The relations of stress intensity factor (SIF) and stress concentration factor (SCF) with normalised crack length, Young’s modulus ratio, FGM layer thickness and power law index have been presented. It has been observed that the FGM layer case has low SCF around hole than FGM plate case in presence of an edge crack.

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来源期刊

Engineering Solid Mechanics Materials Science-Metals and Alloys

CiteScore

3.00

自引率

0.00%

发文量

期刊介绍： Engineering Solid Mechanics (ESM) is an online international journal for publishing high quality peer reviewed papers in the field of theoretical and applied solid mechanics. The primary focus is to exchange ideas about investigating behavior and properties of engineering materials (such as metals, composites, ceramics, polymers, FGMs, rocks and concretes, asphalt mixtures, bio and nano materials) and their mechanical characterization (including strength and deformation behavior, fatigue and fracture, stress measurements, etc.) through experimental, theoretical and numerical research studies. Researchers and practitioners (from deferent areas such as mechanical and manufacturing, aerospace, railway, bio-mechanics, civil and mining, materials and metallurgy, oil, gas and petroleum industries, pipeline, marine and offshore sectors) are encouraged to submit their original, unpublished contributions.