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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); Wu, XQ (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing 100190, Peoples R China
Source PublicationJournal of Applied Physics
2011
Volume110Issue:5Pages:53112
ISSN0021-8979
AbstractThe 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]
KeywordWave Experiments Stress Waves Plasma Generation Aluminum Geometry Alloys Metals
Subject AreaPhysics
DOI10.1063/1.3633266
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000294968600033
WOS KeywordWAVE EXPERIMENTS ; STRESS WAVES ; PLASMA ; GENERATION ; ALUMINUM ; GEOMETRY ; ALLOYS ; METALS
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
DepartmentLMFS冲击与耦合效应(LHO)
Classification二类/Q2
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/44964
Collection非线性力学国家重点实验室
Corresponding AuthorWu, XQ (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Hydrodynam & Ocean Engn, Beijing 100190, Peoples R China
Recommended Citation
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.,...&Wu, XQ .(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.
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