Revisiting the effect of aspect ratio on shear band evolution by hydrostatic-stress embedded free-volume theory

doi:10.1016/j.jnoncrysol.2019.119861

CORC > 金属研究所 > 中国科学院金属研究所

	Revisiting the effect of aspect ratio on shear band evolution by hydrostatic-stress embedded free-volume theory
	Zhao, J. X.1,3; Zhang, Z. F.2; Chen, Y. F.1,3; Gong, J. M.1,3
刊名	JOURNAL OF NON-CRYSTALLINE SOLIDS
	2020-03-01
卷号	531 页码:8
关键词	Metallic glass Shear band Aspect ratio Plasticity Hydrostatic-stress embedded free-volume theory
ISSN号	0022-3093
DOI	10.1016/j.jnoncrysol.2019.119861
通讯作者	Zhao, J. X.(jxzhaoimr@njtech.edu.cn)
英文摘要	The shear band evolution process induced by different aspect ratios was investigated by experiments and hydrostatic-stress embedded free-volume theory. It was found that specimen with lower aspect ratio displayed a higher compressive plasticity since the shear band propagation was confined by the machine head in a way of preventing the sample from fracturing along one major shear band. Hydrostatic-stress embedded free-volume theory was incorporated into ABAQUS as a user material subroutine UMAT. Numerical method was performed to reveal the shear band evolution caused by different aspect ratios. There was a good agreement between experiments and simulations. Furthermore, simulations demonstrated that sample with smaller aspect ratios yielded a relatively lower strain localization level, leading to a correspondingly stable plastic deformation process. Compared with the viscoelastic model, it showed that the current model could better describe shear band evolution history.
资助项目	Nanjing Tech University[3827400243]
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000527022700015
资助机构	Nanjing Tech University
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/138552]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhao, J. X.
作者单位	1.Nanjing Tech Univ, Sch Mech & Power Engn, 30 Puzhu Rd, Nanjing 211816, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Mat Fatigue & Fracture Lab, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Jiangsu Key Lab Design & Manufacture Extreme Pres, Nanjing 210000, Peoples R China
推荐引用方式 GB/T 7714	Zhao, J. X.,Zhang, Z. F.,Chen, Y. F.,et al. Revisiting the effect of aspect ratio on shear band evolution by hydrostatic-stress embedded free-volume theory[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS,2020,531:8.
APA	Zhao, J. X.,Zhang, Z. F.,Chen, Y. F.,&Gong, J. M..(2020).Revisiting the effect of aspect ratio on shear band evolution by hydrostatic-stress embedded free-volume theory.JOURNAL OF NON-CRYSTALLINE SOLIDS,531,8.
MLA	Zhao, J. X.,et al."Revisiting the effect of aspect ratio on shear band evolution by hydrostatic-stress embedded free-volume theory".JOURNAL OF NON-CRYSTALLINE SOLIDS 531(2020):8.