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Validating the ability of the discontinuous deformation analysis method to model normal P‐wave propagation across rock fractures
Author(s) -
Gong Wenjun,
Wang Yunsheng,
Ning Youjun,
Luo Yonghong,
Wang Yujie
Publication year - 2017
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.2679
Subject(s) - discontinuous deformation analysis , fracture (geology) , wave propagation , stiffness , deformation (meteorology) , geology , geotechnical engineering , structural engineering , engineering , finite element method , physics , optics , oceanography
Summary The effects of fractures on wave propagation problems are increasingly abstracting the attention of scholars and engineers in rock engineering field. This study aims to fully validate the ability of discontinuous deformation analysis (DDA) to model normal P‐wave propagation across rock fractures. The effects of a single fracture and multiple parallel fractures are all tested. The results indicate that DDA can accurately reflect the fracture effects, including the fractures stiffness, the fracture spacing and the fracture number, and the effects of incident wave frequency on one‐dimensional P‐wave propagation problems. Thus, DDA is able to deal well with normal incident P‐wave propagation problems. Copyright © 2017 John Wiley & Sons, Ltd.