Numerical Investigation on Crack Formation and Penetration Mechanism between Adjacent Blastholes
Joint Authors
Cao, Jie
Zhao, Qi
Li, Yi
Chen, Xianfeng
Huang, Chuyuan
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-10-31
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
A deep understanding of the crack formation mechanism between blastholes had great significance for improving the energy utilization rate of explosives.
From the perspective of static mechanics of stress wave theory, this paper theoretically derived the stress distribution on the blasthole connecting.
It was proven that the stress at the midpoint of the blasthole connecting was not the maximum.
The analysis results contradicted the original theoretical results.
Moreover, the finite element software LS-DYNA was used to numerically simulate the crack formation between adjacent blastholes in infinite rock media.
The fluid-solid coupling method was used to simulate the effect of stress wave and detonation products on rocks.
The simulation results were consistent with the actual situation and they showed that cracks were formed in the blastholes wall firstly.
Stress wave superposition was not the main reason for crack penetration.
Stress wave reflection stretching at the crack tip was vital for crack penetration.
American Psychological Association (APA)
Li, Yi& Cao, Jie& Chen, Xianfeng& Huang, Chuyuan& Zhao, Qi. 2020. Numerical Investigation on Crack Formation and Penetration Mechanism between Adjacent Blastholes. Shock and Vibration،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1210533
Modern Language Association (MLA)
Li, Yi…[et al.]. Numerical Investigation on Crack Formation and Penetration Mechanism between Adjacent Blastholes. Shock and Vibration No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1210533
American Medical Association (AMA)
Li, Yi& Cao, Jie& Chen, Xianfeng& Huang, Chuyuan& Zhao, Qi. Numerical Investigation on Crack Formation and Penetration Mechanism between Adjacent Blastholes. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1210533
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1210533