Numerical Study of Elastic Wave Propagation Characteristics in Cracked Rock

Kaifeng Han^*, Ruiqi Cao

College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, China.

DOI: 10.4236/jamp.2014.26046                

Abstract

Numerical methods can provide extremely powerful tools for analysis and design of engineering systems with complex factors that are not possible or very difficult with the use of the conventional methods. In this paper, we use the 2-D boundary element method (BEM) program to model elastic wave excited by a point explosive source propagating in cracked rocks. As an example, we consider the typical crack distributions in rocks, both models for the real crack structure are also talked about. The elastic wave propagating in rocks with aligned cracks and parallel fractures is assumed. Effects of different crack parameters, such as crack scale length and crack density are analyzed. Numerical results show that the BEM is a powerful interpretive tool for understanding the complicated wave propagation and interaction in cracked solids.

Keywords

Numerical Study, Elastic Wave, Propagation Characteristics, Cracked Rock, Boundary Element Method

Conflicts of Interest

The authors declare no conflicts of interest.

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