The Elastic-Viscoplastic Field at the Mixed-Mode Crack-Tip under Compression and Shear

Abstract:

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Under the assumption that the viscosity coefficient is in inverse proportion to the power law of the equivalent plastic strain rate. The friction touch effect between viscosity and crack-tip surfaces is considered, the asymptotic solution is established for elastic-viscoplastic field at the mixed-mode quasi static crack-tip under compression and shear. The numerical solution at crack-tip without stress and stain gap is obtained. The variation of numerical solution is discussed for the mixed-mode under compression and shear according to each parameter. Through numerical results and analysis for the mixed-mode crack-tip field under compressing and shear, it is whole plastic without elastic unloaded section, viscosity effect is an important factor when propagating crack-tip field.

Info:

Periodical:

Key Engineering Materials (Volumes 385-387)

Edited by:

H.S. Lee, I.S. Yoon and M.H. Aliabadi

Pages:

321-324

DOI:

10.4028/www.scientific.net/KEM.385-387.321

Citation:

W. Y. Liang et al., "The Elastic-Viscoplastic Field at the Mixed-Mode Crack-Tip under Compression and Shear", Key Engineering Materials, Vols. 385-387, pp. 321-324, 2008

Online since:

July 2008

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Price:

$35.00

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