Shear Viscosity of Aluminium under Shock Compression

Chin. Phys. Lett.

2005, Vol. 22

Issue (3): 747-749 DOI:

Original Articles

Shear Viscosity of Aluminium under Shock Compression

LIU Fu-Sheng¹;YANG Mei-Xia¹;LIU Qi-Wen²;CHEN Jun-Xiang²;JING Fu-Qian^1,2

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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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.

Keywords: 83.85.Jn 62.50.+p 83.60.Fg

Published: 01 March 2005

PACS:	83.85.Jn	(Viscosity measurements)
	62.50.+p
	83.60.Fg	(Shear rate dependent viscosity)

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