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	Dynamic Crushing Behaviors of Open-Cell Foams Based on Sphere-Subtracted Models
	Su Buyun1; Zhou Zhiwei2; Zhang Jianjun1; Li Zhigiang1; Wang Zhihua1; Shu Xuefeng1
刊名	RARE METAL MATERIALS AND ENGINEERING
	2016-03-01
卷号	45期号:3页码:671-676
关键词	open-cell metallic foams sphere-subtracted models dynamic crushing behaviors deformation modes
ISSN号	1002-185X
通讯作者	Li Zhigiang(lizhiqiang@tyut.edu.cn)
英文摘要	The dynamic crushing behaviors of the open-cell foams based on sphere-subtracted models were simulated by the LS-DYNA finite element software. Particularly, the influences of impacting velocity and relative density on deformation modes and plateau stress of the metallic foams were investigated. The simulation results indicate that the whole deformation modes of the metallic foams essentially reflect the different deformation modes of micro struts and have close relationship with the relative density and impact velocity. Under different impact velocities, the metallic foams present three different types of deformation modes, i.e., shock, transition and homogeneous deformation mode. With further deformation, a narrow localized instability band develops gradually in the mid-to-late shock and transition deformation mode. It weakens the bearing capacity of the metallic foams corresponding to apparent drop of the entire stress and plateau stress curves. The critical velocities, at which deformation modes switch from one mode to another, increase with relative density increasing. In addition, relative density, deformation mode and the inertia effect would affect the change of the plateau stress and thus the changing trend of the plateau stress is complex.
收录类别	SCI
WOS关键词	FINITE-ELEMENT ; STRAIN
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000373754600025
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557291
专题	寒区旱区环境与工程研究所
通讯作者	Li Zhigiang
作者单位	1.Taiyuan Univ Technol, Taiyuan 030024, Peoples R China 2.Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Su Buyun,Zhou Zhiwei,Zhang Jianjun,et al. Dynamic Crushing Behaviors of Open-Cell Foams Based on Sphere-Subtracted Models[J]. RARE METAL MATERIALS AND ENGINEERING,2016,45(3):671-676.
APA	Su Buyun,Zhou Zhiwei,Zhang Jianjun,Li Zhigiang,Wang Zhihua,&Shu Xuefeng.(2016).Dynamic Crushing Behaviors of Open-Cell Foams Based on Sphere-Subtracted Models.RARE METAL MATERIALS AND ENGINEERING,45(3),671-676.
MLA	Su Buyun,et al."Dynamic Crushing Behaviors of Open-Cell Foams Based on Sphere-Subtracted Models".RARE METAL MATERIALS AND ENGINEERING 45.3(2016):671-676.

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