Study on Mode I Quasi-Static Growing Crack Field in the Pressure-Sensitive Dilatant Material

Abstract:

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A mechanical model of the pressure-sensitive dilatant material is established in order to investigate the viscous effect in mode I quasi-static growing crack-tip field. The constitutive equations on the pressure-sensitive dilatant material are deducted. Through asymptotic analysis, it is shown that in the stable creep growing stage, the elastic-deformation and the visco-deformation are equally dominant in the near-tip field, as . The asymptotic solutions of separative variable in the crack-tip field of plane stress mode I quasi-static are aslo obtained. According to numerical calculation, the curves of stress, strain and displacement in terms of various parameters are given. The asymptotic solutions of quasi-static growing crack-tip field gained here can conveniently degenerate the incompressible case, when the Poisson ratio , named as HR field. The conclusions can provide the references for further studying the dynamic growing crack-tip field in the pressure-sensitive dilatant material.

Info:

Periodical:

Key Engineering Materials (Volumes 452-453)

Edited by:

A. Saimoto and M.H. Aliabadi

Pages:

205-208

DOI:

10.4028/www.scientific.net/KEM.452-453.205

Citation:

Y. Yang et al., "Study on Mode I Quasi-Static Growing Crack Field in the Pressure-Sensitive Dilatant Material", Key Engineering Materials, Vols. 452-453, pp. 205-208, 2011

Online since:

November 2010

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Price:

$35.00

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