Shock pressure induced by glass-confined laser shock peening: Experiments, modeling and simulation

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	Shock pressure induced by glass-confined laser shock peening: Experiments, modeling and simulation
	Wu XQ(吴先前); Duan ZP(段祝平); Song HW(宋宏伟); Wei YP(魏延鹏); Wang X(王曦); Huang CG(黄晨光)
刊名	Journal of Applied Physics
	2011
通讯作者邮箱	songhw@imech.ac.cn; huangcg@imech.ac.cn
卷号	110 期号:5 页码:53112
关键词	Wave Experiments Stress Waves Plasma Generation Aluminum Geometry Alloys Metals
ISSN号	0021-8979
通讯作者	Wu, XQ (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing 100190, Peoples R China
产权排序	[Wu, Xianqian; Song, Hongwei; Wei, Yanpeng; Wang, Xi; Huang, Chenguang] Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing 100190, Peoples R China; [Duan, Zhuping] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
中文摘要	The shock pressure generated by the glass confined regime in laser shock peening and its attenuation in the target material are investigated. First, the particle velocity of the target back free surface induced by laser generated shock pressure of this regime is measured using a photonic Doppler velocimetry system. The temporal profile of the particle velocity at the back free surface, where the elastic precursor is captured, manifests a powerful diagnostic capability of this newly developed photonic Doppler velocimetry system for tracking the velocity on short time scales in shock-wave experiments. Second, a coupling pressure analytical model, in which the material constitutive models of confined layers and target material are considered, is proposed to predict the plasma pressure profile at the surface of target. Furthermore, using the predicted shock pressure profile as the input condition, the dynamic response of the target under the shock pressure is simulated by LS-DYNA. The simulated back free surface velocity profile agrees well with that measured by the photonic Doppler velocimetry system. Finally, the attenuation behavior of stress waves and particle velocities in the depth of the target is analyzed, and it indicates an exponential decay. The corresponding empirical formulas for the attenuation behavior are given based on the numerical results. (C) 2011 American Institute of Physics. [doi:10.1063/1.3633266]
学科主题	Physics
分类号	二类/Q2
类目[WOS]	Physics, Applied
研究领域[WOS]	Physics
关键词[WOS]	WAVE EXPERIMENTS ; STRESS WAVES ; PLASMA ; GENERATION ; ALUMINUM ; GEOMETRY ; ALLOYS ; METALS
收录类别	SCI ; EI
原文出处	http://dx.doi.org/10.1063/1.3633266
语种	英语
WOS记录号	WOS:000294968600033
公开日期	2012-04-01
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/44964]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Wu XQ,Duan ZP,Song HW,et al. Shock pressure induced by glass-confined laser shock peening: Experiments, modeling and simulation[J]. Journal of Applied Physics,2011,110(5):53112.
APA	吴先前,段祝平,宋宏伟,魏延鹏,王曦,&黄晨光.(2011).Shock pressure induced by glass-confined laser shock peening: Experiments, modeling and simulation.Journal of Applied Physics,110(5),53112.
MLA	吴先前,et al."Shock pressure induced by glass-confined laser shock peening: Experiments, modeling and simulation".Journal of Applied Physics 110.5(2011):53112.