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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; Xu, Yong; Zhang, Shi-Hong; Ha, Sangyul; Ma, Yan; Chen, Dayong
2019-07-01
Source PublicationJOURNAL OF ADVANCED RESEARCH
ISSN2090-1232
Volume18Pages:19-37
AbstractSince 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.
KeywordAA2060 High strain rate deformation Dynamic behavior Anisotropic response Phenomenological-based constitutive modelling
Indexed BySCI
Language英语
WOS IDWOS:000471218900003
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80954
Collection中国科学院金属研究所
Recommended Citation
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.
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