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Continuum modeling of the response of a Mg alloy AZ31 rolled sheet during uniaxial deformation
Fernandez A; Perez PMT; Wei YJ(魏宇杰); Jerusalem A; Jerusalem, A (reprint author), IMDEA Mat Inst, Calle Prof Aranguren S-N, Madrid 28040, Spain
2011
发表期刊International Journal of Plasticity
卷号27期号:11页码:1739-1757
ISSN0749-6419
摘要Lightweight magnesium alloys, such as AZ31, constitute alternative materials of interest for many industrial sectors such as the transport industry. For instance, reducing vehicle weight and thus fuel consumption can actively benefit the global efforts of the current environmental industry policies. To this end, several research groups are focusing their experimental efforts on the development of advanced Mg alloys. However, comparatively little computational work has been oriented towards the simulation of the micromechanisms underlying the deformation of these metals. Among them, the model developed by Staroselsky and Anand [Staroselsky, A., Anand, L, 2003. A constitutive model for HCP materials deforming by slip and twinning: application to magnesium alloy AZ31B. International Journal of Plasticity 19(10), 1843-1864] successfully captured some of the intrinsic features of deformation in Magnesium alloys. Nevertheless, some deformation micromechanisms, such as cross-hardening between slip and twin systems, have been either simplified or disregarded. In this work, we propose the development of a crystal plasticity continuum model aimed at fully describing the intrinsic deformation mechanisms between slip and twin systems. In order to calibrate and validate the proposed model, an experimental campaign consisting of a set of quasi-static compression tests at room temperature along the rolling and normal directions of a polycrystalline AZ31 rolled sheet, as well as an analysis of the crystallographic texture at different stages of deformation, has been carried out. The model is then exploited by investigating stress and strain fields, texture evolution, and slip and twin activities during deformation. The flexibility of the overall model is ultimately demonstrated by casting light on an experimental controversy on the role of the pyramidal slip < c + a > versus compression twinning in the late stage of polycrystalline deformation, and a failure criterion related to basal slip activity is proposed. (C) 2011 Elsevier Ltd. All rights reserved.
关键词Magnesium Continuum Model Crystal Plasticity High-temperature Deformation Independent Crystal Plasticity Finite-element-method Magnesium Alloy Texture Evolution Single-crystal Hcp Metals Mechanical-behavior Strain Rates Grain-size
学科领域Engineering ; Materials Science ; Mechanics
DOI10.1016/j.ijplas.2011.05.002
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收录类别SCI ; EI
语种英语
WOS记录号WOS:000295065700002
关键词[WOS]HIGH-TEMPERATURE DEFORMATION ; INDEPENDENT CRYSTAL PLASTICITY ; FINITE-ELEMENT-METHOD ; MAGNESIUM ALLOY ; TEXTURE EVOLUTION ; SINGLE-CRYSTAL ; HCP METALS ; MECHANICAL-BEHAVIOR ; STRAIN RATES ; GRAIN-SIZE
WOS研究方向Engineering ; Materials Science ; Mechanics
WOS类目Engineering, Mechanical ; Materials Science, Multidisciplinary ; Mechanics
项目资助者The authors are grateful to Prof. Lallit Anand at the Massachusetts Institute of Technology for supplying for their research the original VUMAT for rate-independent crystal plasticity for HCP materials written by Staroselsky (1998), Staroselsky and Anand (2003). The VUMAT used in this work is a modified and extended version of this subroutine. The authors are also grateful to Prof. Ron Armstrong for very productive discussions. A.F., T.P. and A.J. would like to thank the vehicle interior manufacturer, Grupo Antolin Ingenieria, S.A., within the framework of the project MAGNO2008-1028-CENIT Project funded by the Spanish Ministry. Funding from the ESTRUMAT-S2009/MAT-1585 grant (Madrid Regional Government) is acknowledged. The technicians of the CAI Difraccion de rayos X. of the Complutense University in Madrid, are sincerely thanked for their kind assistance. A.J. also acknowledges support from the Juan de la Cierva grant from the Spanish Ministry of Science and Innovation and from the Amarout grant from the European Union. Y.W. acknowledges financial support from Chinese Academy of Sciences for the "Hundred Talent Program" and NSFC #11021262.
课题组名称LNM微结构计算力学(筹)
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文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/44899
专题非线性力学国家重点实验室
通讯作者Jerusalem, A (reprint author), IMDEA Mat Inst, Calle Prof Aranguren S-N, Madrid 28040, Spain
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Fernandez A,Perez PMT,Wei YJ,et al. Continuum modeling of the response of a Mg alloy AZ31 rolled sheet during uniaxial deformation[J]. International Journal of Plasticity,2011,27(11):1739-1757.
APA Fernandez A,Perez PMT,魏宇杰,Jerusalem A,&Jerusalem, A .(2011).Continuum modeling of the response of a Mg alloy AZ31 rolled sheet during uniaxial deformation.International Journal of Plasticity,27(11),1739-1757.
MLA Fernandez A,et al."Continuum modeling of the response of a Mg alloy AZ31 rolled sheet during uniaxial deformation".International Journal of Plasticity 27.11(2011):1739-1757.
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