Finite element analysis of notched bars subjected to elastic-plastic deformation

Author:

Tsang Mathew,Kanapathipillai Sangarapillai,Chowdhury Mahiuddin

Abstract

For many years engineers and scientists have speculated about the relationship between the load carrying capacity of notched bars and their stress concentration factors. However, past attempts to quantify this relationship have failed and the problem remains largely unresolved. This study strongly supports the view that this relationship exists, and that there are correlations between load carrying capacity and stress concentration for notched bars subjected to tension. The study was done with the use of computer aided technology and finite element analysis, which allowed for more rigorous testing procedures when compared with conventional tensile testing methods. Two studies were conducted: firstly, an analysis which assumed perfectly elastic conditions, and secondly, an analysis which assumed realistic elastic-plastic conditions. Variables of interest included maximum strain energy density, plastic collapse load, elastic stress concentration factor, elastic-plastic stress concentration factor, root radius and the distance between the notch surface to the maximum load. It was found that these variables correlate to one another and that most of them are dependent on material properties. Both linear and non-linear relationships were found. Linear relationships were quantifiable and were represented by equations. Equations for most of the non-linear relationships could not be substantiated, as there were not enough data points present.

Publisher

Emerald

Subject

Electrical and Electronic Engineering,Mechanical Engineering,Mechanics of Materials,Geotechnical Engineering and Engineering Geology,Civil and Structural Engineering

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3