Paper Title:
General Solving Method of Energy Dissipation Rate of Deforming Region in Upper-Bound Analysis for Coulomb Material
  Abstract

At present the energy dissipation rate per unit volume of deforming region is expressed with the function of principal strain rates in upper-bound analysis for Coulomb material and this restricts the application of deforming failure mechanisms in upper-bound method. In this paper, a general method of expressing the energy dissipation rate of deforming region with bulk strain rate was put forward and the conditions that the assumed velocity field of deforming region should meet were pointed out. The general method simplifies the solving process of the energy dissipation rate. Finally, the method was employed to calculate the energy dissipation rate of the logspiral shear zone and was proved practical.

  Info
Periodical
Key Engineering Materials (Volumes 306-308)
Edited by
Ichsan Setya Putra and Djoko Suharto
Pages
1439-1444
DOI
10.4028/www.scientific.net/KEM.306-308.1439
Citation
X.Z. Cui, Q. Jin, Q.S. Shang, Z. Y. Yao, "General Solving Method of Energy Dissipation Rate of Deforming Region in Upper-Bound Analysis for Coulomb Material", Key Engineering Materials, Vols. 306-308, pp. 1439-1444, 2006
Online since
March 2006
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