Paper Title:

Study On the Damage Evolution Equation of Rockburst

Periodical Advanced Materials Research (Volumes 33 - 37)
Main Theme Advances in Fracture and Materials Behavior
Edited by Wei Yang, Mamtimin Geni, Tiejun Wang and Zhuo Zhuang
Pages 663-668
DOI 10.4028/www.scientific.net/AMR.33-37.663
Citation Quan Sheng Liu et al., 2008, Advanced Materials Research, 33-37, 663
Online since March, 2008
Authors Quan Sheng Liu, Bin Liu, Wei Gao
Keywords Damage Evolution Equation, Principle of Minimum Energy Dissipation, Rockburst, Total Strength Criterion
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Abstract

This paper introduces the principle of minimum energy dissipation and its general procedures to establish development equation of internal variable. With the accepted viewpoint that the damage is only mechanics of energy dissipation during the rockburst and utilizing the total strength criterion based on released strain energy, the general damage evolution equation is deduced. Compared with the traditional research method of damage evolution equation, this method has universal and objective characteristics.