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Shear Viscosity of Aluminium under Shock Compression |
LIU Fu-Sheng1;YANG Mei-Xia1;LIU Qi-Wen2;CHEN Jun-Xiang2;JING Fu-Qian1,2 |
1Laboratory of High Pressure Physics, Southwest Jiaotong University, Chengdu 610031
2Key Laboratory of Shock Wave and Detonation Physics, China Academy of Engineering Physics, PO Box 919, Mianyang 621900 |
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Cite this article: |
LIU Fu-Sheng, YANG Mei-Xia, LIU Qi-Wen et al 2005 Chin. Phys. Lett. 22 747-749 |
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Abstract Based on the Newtonian viscous fluid model and the analytic perturbation theory of Miller and Ahrens for the oscillatory damping of a sinusoidal shock front, a flyer-impact technique is developed to investigate the effective viscosity of shocked aluminium. The shear viscosity coefficient is determined to be about 5000 poises at 42GPa with strain rate of 1.27×106s-1, which is a reasonable estimation compared with the results of other measurement methods.
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Keywords:
83.85.Jn
62.50.+p
83.60.Fg
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Published: 01 March 2005
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