Two-dimensional dynamic finite element simulation of rock blasting

被引：35

作者：

Sazid, M. ^{[1
]}

Singh, T. N. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Earth Sci, Bombay 400076, Maharashtra, India

来源：

ARABIAN JOURNAL OF GEOSCIENCES | 2013年 / 6卷 / 10期

关键词：

Finite element method; Abaqus; Rock blasting;

D O I：

10.1007/s12517-012-0632-4

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

In the present study, the two-dimensional blast model has been simulated using finite element software Abaqus/CAE. The John-Wilkins-Lee equation of state has been used to calculate the pressure caused by the release of the chemical energy of the explosive. Detonation point from center of hole has been defined for the traveling path of explosive energy. Elastoplastic dynamic failure constitutive with kinematic hardening model was adopted for rock mass responses under high explosive pressure to understand the mechanism of blast phenomena. In this model, it is assumed that failure of rock occurs under tensile failure when yield plastic stress exceeded to its static tensile strength. The hydrostatic pressure was used as a failure measure to model dynamic spall or a pressure cut off. Variation of detonation velocity has been measured in terms of simulation blast output energies index results.

引用

页码：3703 / 3708

页数：6