Dynamic responses of copper and impact velocity of split Hopkinson pressure bar strikers

Author:

Gupta Manish Kumar1

Affiliation:

1. Assistant Professor, KCCITM Greater Noida, India ()

Abstract

Copper high-impact analysis is critical for understanding characterization at dynamic strain rates. The dynamic behaviour of any material is influenced by numerous components of a split Hopkinson pressure bar (SHPB), such as striker forms, striker speed, striker length, bar geometry, and so on. There is also a significant information gap in the literature when it comes to determining the behaviour of copper under high strain rates, especially when the SHPB parameters are varied. Using ABAQUS/Explicit 6.14, this paper numerically investigates the dynamic behaviour of copper under different striker bar shapes (circular flat, circular round, and square) and impact velocities (10, 12.5, 15, 17.5, and 20 m/s). To understand the effects of the specimen's shape under high strain rate loadings, the geometry of the copper specimen is also changed from circular to square. Copper's behaviour was found to be positively sensitive to strain rates, and compressive strength increased by 32%. For the common velocity of the striker, the maximum copper strength was found for a circular flat-shaped striker and the minimum for a circular round-shaped striker. The true yield strength and ultimate strength increase by 8% and 3%, respectively, when the shape of the specimen changes from circular to square.

Publisher

Thomas Telford Ltd.

Subject

Mechanics of Materials,Civil and Structural Engineering

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

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