Numerical simulation of two-hole blasting using numerical manifold method

HUANG Tao; CHEN Peng-wan; ZHANG Guo-xin; YANG Jun

doi:10.11883/1001-1455(2006)05-0434-07

Volume 26 Issue 5

Nov. 2014

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Article Navigation > Explosion And Shock Waves > 2006 > 26(5): 434-440

NI Zhi-jun, ZHOU Ke-dong, HE Lei, WANG Shu. A high-resolution numerical simulation of two-phase flow interior ballistics of the weapon with non traditional structure[J]. Explosion And Shock Waves, 2006, 26(5): 468-473. doi: 10.11883/1001-1455(2006)05-0468-06

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HUANG Tao, CHEN Peng-wan, ZHANG Guo-xin, YANG Jun. Numerical simulation of two-hole blasting using numerical manifold method[J]. Explosion And Shock Waves, 2006, 26(5): 434-440. doi: 10.11883/1001-1455(2006)05-0434-07

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Numerical simulation of two-hole blasting using numerical manifold method

doi: 10.11883/1001-1455(2006)05-0434-07

1.
National Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;
2.
Institute of Structure Materials, Chinese Academy of Water Resources and Hydropower Research, Beijing 100038, China

Publish Date: 2006-09-25

Abstract

Abstract

Based on the fundamental theories of numerical manifold method (NMM), a criterion of crack initiation and crack growth is introduced into NMM. NMM is used to numerically study the process of two-hole blasting, in which two different initiation conditions are considered. One is simultaneous initiation, the other is 0.1 ms delay initiation. The whole blasting process including crack initiation, crack growth, the formation of fragments and the formation of a blasting crater is simulated. The failure mechanisms of rock under blasting loading and the influences of initiation conditions on that process are analyzed. NMM has proven to be an effective and accurate method for in the study of rock failure from a continuous mass to a discontinuous mass. The results provide further insights and a new method in the research of the related issues.
- mechanics of explosion,
- process of rock failure,
- numerical manifold method,
- two-hole blasting,
- shock loading,
- numerical simulation

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