Journal ArticleDOI
Laser-induced shock compression of monocrystalline copper: characterization and analysis
Marc A. Meyers,Fabienne Grégori,Bimal K. Kad,M. S. Schneider,Daniel H. Kalantar,Bruce Remington,Guruswami Ravichandran,T. R. Boehly,Justin Wark +8 more
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TLDR
In this paper, a method for estimating dislocation densities is proposed, based on nucleation of loops at the shock front and their extension due to residual shear stresses behind the front.About:
This article is published in Acta Materialia.The article was published on 2003-03-14. It has received 219 citations till now. The article focuses on the topics: Slip (materials science) & Crystal twinning.read more
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Deformation twinning in nanocrystalline materials
TL;DR: In this paper, a review of deformation twinning in nanocrystalline materials is presented, including deformation twins observed by molecular dynamics simulations and experiments, twinning mechanisms, factors affecting the twinning, analytical models on the nucleation and growth of deformations, interactions between twins and dislocations, and the effects of twins on mechanical and other properties.
Journal ArticleDOI
Grain refinement mechanism of multiple laser shock processing impacts on ANSI 304 stainless steel
Jin Zhon Lu,Kaiyu Luo,Yong Kang Zhang,Sun Guifang,Y.Y. Gu,Jianzhong Zhou,Xu Dong Ren,Xian-Cheng Zhang,Ling Feng Zhang,K.M. Chen,C.Y. Cui,Y.F. Jiang,A.X. Feng,Lai-Chang Zhang +13 more
TL;DR: In this article, the micro-structural evolution and grain refinement in ANSI 304 stainless steel subjected to multiple laser shock processing (LSP) impacts were investigated by means of cross-sectional optical microscopy and transmission electron microscopy observations.
Journal ArticleDOI
Grain refinement of LY2 aluminum alloy induced by ultra-high plastic strain during multiple laser shock processing impacts
J.Z. Lu,Kaiyu Luo,Y.K. Zhang,C.Y. Cui,Sun Guifang,Jun Zhou,Lai-Chang Zhang,J. You,K.M. Chen,J.W. Zhong +9 more
TL;DR: In this article, the plastic deformation behavior and the effects of the impact time on the LY2 aluminum (Al) alloy during multiple laser shock processing (LSP) impacts were investigated.
Journal ArticleDOI
Void growth by dislocation emission
TL;DR: In this paper, a criterion for the emission of a dislocation from the surface of a void under remote tension is formulated, analogous to Rice and Thomsons criterion for crack blunting by dislocation emission from the crack tip.
Journal ArticleDOI
Ultrahigh Strength in Nanocrystalline Materials Under Shock Loading
Eduardo M. Bringa,Eduardo M. Bringa,Alfredo Caro,Alfredo Caro,Yinmin Wang,Yinmin Wang,Maximo Victoria,Maximo Victoria,James McNaney,James McNaney,Bruce Remington,Bruce Remington,Raymond F. Smith,Raymond F. Smith,Ben Torralva,Ben Torralva,Helena Van Swygenhoven,Helena Van Swygenhoven +17 more
TL;DR: Molecular dynamics simulations of nanocrystalline copper under shock loading show an unexpected ultrahigh strength behind the shock front, with values up to twice those at low pressure.
References
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Journal ArticleDOI
Dislocations in a simple cubic lattice
TL;DR: In this paper, the authors calculate the activation energy of dislocations in a perfect lattice and show that the energy of a dislocation can be estimated by an approximate method due to Peierls.
Journal ArticleDOI
Shock Waves and High-Strain-Rate Phenomena in Metals
TL;DR: The proceedings of EXPLOMET 90, the International Conference on the Materials Effects of Shock-Wave and High-Strain-Rate Phenomena, held August 1990, in La Jolla, California, represent a global and up-to-date appraisal of this field as discussed by the authors.
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Metallurgical applications of shock wave and high strain rate phenomena
TL;DR: In this paper, the impact testing of metals has been studied, including dynamic consolidation, the analysis of dislocation kinetics across shocks, high-strain-rate deformation, adiabatic shear band phenomena, dynamic fracture, explosive metal working, and novel concepts and applications of high pressure.
High-pressure science and technology--1993
TL;DR: In this paper, a joint meeting of the International Association for Research and Advancement of High Pressure Science and Technology and the American Physical Society Topical Group on shock compression of condensed matter was held, which dealt with the full spectrum of both static and dynamic high pressure investigations.