Impact of high strain rate deformation on the mechanical behavior, fracture mechanisms and anisotropic response of 2060 Al-Cu-Li alloy

doi:10.1016/j.jare.2019.01.012

CORC > 金属研究所 > 中国科学院金属研究所

	Impact of high strain rate deformation on the mechanical behavior, fracture mechanisms and anisotropic response of 2060 Al-Cu-Li alloy
	Abd El-Aty, Ali 1,2; Xu, Yong 1,3; Zhang, Shi-Hong 1; Ha, Sangyul 4; Ma, Yan 1; Chen, Dayong 1
刊名	JOURNAL OF ADVANCED RESEARCH
	2019-07-01
卷号	18 页码:19-37
关键词	AA2060 High strain rate deformation Dynamic behavior Anisotropic response Phenomenological-based constitutive modelling
ISSN号	2090-1232
DOI	10.1016/j.jare.2019.01.012
通讯作者	Xu, Yong(yxu@imr.ac.cn)
英文摘要	Since AA2060-T8 was introduced in the past few years, investigating the mechanical response, fracture mechanisms, and anisotropic behaviour of AA2060-T8 sheets under high strain rate deformation has been crucial. Thus, uniaxial tensile tests were performed under quasi-static, intermediate, and high strain rate conditions using universal testing machines as well as split Hopkinson tensile bars. The experimental results showed that the ductility of AA2060-T8 sheets was improved during high strain rate deformation because of the adiabatic softening and the inertia effect which contribute to slow down the necking development, and these results were verified by the fracture morphologies of high strain rate tensile samples. Furthermore, the strain rate hardening influence of AA2060-T8 was significant. Therefore, the Johnson-Cook constitutive model was modified to consider the effects of both strain and strain rates on the strain hardening coefficient. The results obtained from the improved Johnson-Cook constitutive model are in remarkable accordance with those obtained from experimental work. Thus, the improved Johnson-Cook model can predict the flow behavior of AA2060-T8 sheets at room temperature over a wide range of strain rates. The results of the present study can efficiently be used to develop a new manufacturing route based on impact hydroforming technology (IHF) to manufacture sound thin-walledcomplex shape components from AA2060-T8 sheets at room temperature. (C) 2019 The Authors. Published by Elsevier B.V. on behalf of Cairo University.
资助项目	National Natural Science Foundation of China[51875548] ; Natural Science Foundation of Liaoning Province of China[20180550851] ; Shenyang Science and Technology Program[17-32-6-00]
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000471218900003
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province of China ; Shenyang Science and Technology Program
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/134153]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xu, Yong
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China 4.Samsung Electromech, Corp R&D Inst, Suwon 443743, South Korea
推荐引用方式 GB/T 7714	Abd El-Aty, Ali,Xu, Yong,Zhang, Shi-Hong,et al. Impact of high strain rate deformation on the mechanical behavior, fracture mechanisms and anisotropic response of 2060 Al-Cu-Li alloy[J]. JOURNAL OF ADVANCED RESEARCH,2019,18:19-37.
APA	Abd El-Aty, Ali,Xu, Yong,Zhang, Shi-Hong,Ha, Sangyul,Ma, Yan,&Chen, Dayong.(2019).Impact of high strain rate deformation on the mechanical behavior, fracture mechanisms and anisotropic response of 2060 Al-Cu-Li alloy.JOURNAL OF ADVANCED RESEARCH,18,19-37.
MLA	Abd El-Aty, Ali,et al."Impact of high strain rate deformation on the mechanical behavior, fracture mechanisms and anisotropic response of 2060 Al-Cu-Li alloy".JOURNAL OF ADVANCED RESEARCH 18(2019):19-37.