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Two-dimensional dynamic finite element simulation of rock blasting

DSpace at IIT Bombay

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Title Two-dimensional dynamic finite element simulation of rock blasting
 
Creator SAZID, M
SINGH, TN
 
Subject Finite element method
Abaqus
Rock blasting
DAMAGE
MODEL
 
Description 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.
 
Publisher SPRINGER HEIDELBERG
 
Date 2014-10-15T10:19:17Z
2014-10-15T10:19:17Z
2013
 
Type Article
 
Identifier ARABIAN JOURNAL OF GEOSCIENCES, 6(10)3703-3708
http://dx.doi.org/10.1007/s12517-012-0632-4
http://dspace.library.iitb.ac.in/jspui/handle/100/14728
 
Language en