Paper Title:
Study on the Crack-Tip in the Pressure-Sensitive Dilatant Materials
  Abstract

In the petroleum engineering, the nonlinear bulk strain or bulk strain rate must be considered in rock deformation, adopting the viscous-elastic theory, a constitutive equation of the pressure-sensitive dilatant materials was established. The governing eqations were deducted in crack-tip field of quasi-static growing crack in pressure-sensitive dilatant materials. And for the mechanical model of a rigid-viscoelastic material interfacial crack, through numerical calculate, the asymptotic solution of the continuous separate variable formal of stress, strain and displacement. The significance of the material parameter in the crack-tip field is discussed. The study of the paper will provide theoretical references for preventing the glide of the mud rock and reducing the arises of the failure of casings of well.

  Info
Periodical
Key Engineering Materials (Volumes 324-325)
Edited by
M.H. Aliabadi, Qingfen Li, Li Li and F.-G. Buchholz
Pages
21-24
DOI
10.4028/www.scientific.net/KEM.324-325.21
Citation
Y. Yang, L. Q. Tang, Y. D. Li, "Study on the Crack-Tip in the Pressure-Sensitive Dilatant Materials", Key Engineering Materials, Vols. 324-325, pp. 21-24, 2006
Online since
November 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yong Yang, Ning Li, Li Qiang Tang
Abstract:A mechanical model of the pressure-sensitive dilatant material is established in order to investigate the viscous effect in quasi-static...
665
Authors: Li Qiang Tang, Xue Mei Yu, Xiao Ying Zhang
Abstract:Investigation on mechanical properties of rock, soil and powder metallurgy is an important subject in study of damage constitutive models....
893
Authors: Yong Yang, Guo Hui Wu, Li Qiang Tang, Ning Li
Abstract:A mechanical model of the pressure-sensitive dilatant material is established in order to investigate the viscous effect in mode I...
205
Authors: Chen Hua Lu, Bo Liu, Jian Bing Sang, Yan Hui Qie, Jing Yuan Wang
Chapter 3: Solid Mechanics
Abstract:Following the modified Gurson model in meso-mechanics, the models with spherical holes are established by the assumption which the matrix...
493
Authors: Yong Yang, Zai Lin Yang, Li Qiang Tang
Abstract:Under high temperature, many metals show viscoelastic properties, which are closely related to environmental factors and strain rate....
353