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Title:
Shock pressure induced by glass-confined laser shock peening: Experiments, modeling and simulation
Author: 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)
Source: Journal of Applied Physics
Issued Date: 2011
Volume: 110, Issue:5, Pages:53112
Abstract: 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]
Keyword: Wave Experiments ; Stress Waves ; Plasma ; Generation ; Aluminum ; Geometry ; Alloys ; Metals
Language: 英语
Indexed Type: SCI ; EI
Corresponding Author: Wu, XQ (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing 100190, Peoples R China
Correspondent Email: songhw@imech.ac.cn; huangcg@imech.ac.cn
DOI: 10.1063/1.3633266
Related URLs: 查看原文
DOC Type: Article
WOS Subject: Physics, Applied
WOS Subject Extended: Physics
WOS Keyword Plus: WAVE EXPERIMENTS ; STRESS WAVES ; PLASMA ; GENERATION ; ALUMINUM ; GEOMETRY ; ALLOYS ; METALS
WOS ID: WOS:000294968600033
ISSN: 0021-8979
Rank: [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
Subject: Physics
Department: LMFS冲击与耦合效应(LHO)
Classification: 二类/Q2
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/44964
Appears in Collections:非线性力学国家重点实验室_期刊论文

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Recommended Citation:
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,2011-01-01,110(5):53112.
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