Effects of imperfect experimental conditions on stress waves in SHPB experiments

doi:10.1007/s10409-015-0439-0

IMECH-IR > 流固耦合系统力学重点实验室

	Effects of imperfect experimental conditions on stress waves in SHPB experiments
	Wu XQ(吴先前); Yin QY(殷秋运); Wei YP(魏延鹏); Huang CG(黄晨光); Wu XQ(吴先前)
发表期刊	Acta Mechanica Sinica
	2015-08-14
卷号	31 期号:6 页码:827-836
摘要	Experimental and numerical simulations were undertaken to estimate the effects of imperfect conditions on stress waves in split Hopkinson pressure bar (SHPB) experiments. The photonic Doppler velocimetry (PDV) measurement results show that the rise and fall times of an incident wave increases with an increasing inclination angle; also, the fluctuations of the incident wave disappear gradually with the increase of inclination angle. The following characteristics for various defects in the SHPB were obtained by numerical simulation: (1) the influence of a curved bar was negligible; (2) misalignment modestly affects the fluctuation characteristics, and bending waves were generated at this condition; (3) inclination and indentation of the impact end-surface had a great impact on the incident waves, and both of them increase the rise time of the incident wave by increasing the degree of defects. In view of the results, misalignment, inclination, and indentation in SHPB experiments should be minimized. © 2015, The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg.
DOI	10.1007/s10409-015-0439-0
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:000367452900005
项目资助者	National Natural Science Foundation of China for financial support
CSCD记录号	CSCD:5596376
课题组名称	LMFS冲击与耦合效应(LHO)
论文分区	二类
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录] 被引频次：2[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/58349
专题	流固耦合系统力学重点实验室
通讯作者	Wu XQ(吴先前)
推荐引用方式 GB/T 7714	Wu XQ,Yin QY,Wei YP,et al. Effects of imperfect experimental conditions on stress waves in SHPB experiments[J]. Acta Mechanica Sinica,2015,31,6,:827-836.
APA	Wu XQ,Yin QY,Wei YP,Huang CG,&吴先前.(2015).Effects of imperfect experimental conditions on stress waves in SHPB experiments.Acta Mechanica Sinica,31(6),827-836.
MLA	Wu XQ,et al."Effects of imperfect experimental conditions on stress waves in SHPB experiments".Acta Mechanica Sinica 31.6(2015):827-836.

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