Dynamic characteristics of thin aluminum under high pressure loading measured by shading principle
-
1.
Jiangsu Provincial Key Laboratory for Science and Technology of Photon Manufacturing, Jiangsu University, Zhenjiang 212013, China
-
Corresponding author:
ZHANG Yong-kang, ykzhang@ujs.edu.cn
;
-
Received Date:
2010-03-15
Accepted Date:
2010-03-26
-
Abstract
In order to measure dynamic characteristics of a specimen in the laser shock forming laser shock forming accurately, a new experimental device was designed to detect the dynamic change of the loaded material based on shading principle. The experimental results indicate that elastic deformation and plastic deformation of 1060 thin aluminum coexist during the process of laser shock forming, and the existence of plastic deformation period is far longer than the elastic deformation. Based on the experiment, it can be calculated that the average speed of elastic deformation and average strain rate of the sample in central area are 3.2103m/s and 8.9104s-1 respectively. The results provide the experimental evidence for the development of relevant laser shock forming technology.
-
-
References
|
[1]
|
ZHOU J Z,ZHANG Y K,YANG J C,et al.A new technique on plastic forming of metal sheet by laser shock wave[J].China Mechanical Engineering,2002,13(22)：1938-1941(in Chinese). |
|
[2]
|
PEYER P,FABBOR R.Laser shock processing:a review of the physics and applications[J].Optical and Quantum Electronics,1995,27(12):1213-1229. |
|
[3]
|
ZHOU J Zh,YANG J C,ZHANG Y K,et al.A study on super-speed forming of metal sheet by laser shock waves[J].Journal of Material Processing Technology,2002,129(1/3):241-244. |
|
[4]
|
ZHOU J Zh,ZHANG Y K,ZHOU M,et al.Theoretical analysis on deformation of sheet metal under one laser shot loading[J].Chinese Journal of Lasers,2005,32(1):135-138(in Chinese). |
|
[5]
|
WANG G L,ZHOU J Zh.Experiments and simulation of Al-alloy plate deforming by laser shock forming[J].Laser Technology,2007,31(5):555-557(in Chinese). |
|
[6]
|
WANG F.The theory of pulsed laser shock forming and experimental research[D].Shanghai:Shanghai Jiaotong University,2008:65-69(in Chinese). |
|
[7]
|
MEYERS M A,GREGORI F,KAD B K,et al.Laser-induced shock compression of monocrystalline copper:characterization and analysis[J].Acta Materialia,2003,51(5):121l-1228. |
|
[8]
|
BAYAND S H,MAHER W E,HALL R B.Laser-target interaction near the plasma-formation threshold[J].Journal of Applied Physics,1980,51(11):5699-5707. |
|
[9]
|
TOLLIER L,BARTNICKI E,FABBRO R.Experimental and numerical study of laser-driven spallation on aluminum with VISAR diagnostic[J].Proceedings of SPIE,1996,2789:254-263. |
|
[10]
|
MALONE R M,FROGGET B C,KAUFMAN M I,et al.Overview of the line-imaging VISAR diagnostic at the National Ignition Facility (NIF)[J].Proceedings of SPIE,2006,6342:1969-2101. |
|
[11]
|
PAISLEY D L,SWIFT D C,FORSMAN A C,et al.High-speed optical and X-ray methods for evaluating laser-generated shock waves in materials and the corresponding dynamic material response[J].Proceedings of SPIE,2001,4183:556-565. |
|
[12]
|
ZHANG X Q,ZHANG Y K,GU Y Y,et al.Experimental study on metal sheet of LD31 aluminum alloy shocked by intense laser[J].Journal of Huazhong University of Science and Technology(Natural Science Edition),2007,35(s1):139-142(in Chinese). |
-
-
Proportional views
-
Map
DownLoad: