Simulation of Crack Initiation and Propagation Using the Improved DDA

Mingyao Xia, Guangqi Chen

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

抄録

This paper analyses the rock fracture problem of Brazil disc split tests by using an improved DDA method. By incorporating a new rock fracture law and the discretization approach, the improved DDA can be used to simulate crack propagation during the rock fracture process in a two-dimensional plane stress state, such as the crack propagation in Brazil disc split tests. A numerical example of simulating the Brazil disc split tests for verification has been computed using the proposed DDA method. The simulated result agrees well with those obtained from the experiment, which proves the effectiveness and accuracy of the proposed DDA method. Meanwhile, the Brazil disc split test under different loading rates is performed systematically to investigate the external influences on rock fracturing. The result shows that the improved DDA can be well used for simulating the two-dimensional dynamic rock fracture problems in engineering.

本文言語英語
ホスト出版物のタイトルAdvances in Sustainable Construction and Resource Management
編集者Hemanta Hazarika, Gopal Santana Madabhushi, Kazuya Yasuhara, Dennes T. Bergado
出版社Springer Science and Business Media Deutschland GmbH
ページ327-335
ページ数9
ISBN(印刷版)9789811600760
DOI
出版ステータス出版済み - 2021
イベント1st International Symposium on Construction Resources for Environmentally Sustainable Technologies, CREST 2020 - Fukuoka, 日本
継続期間: 3月 9 20213月 11 2021

出版物シリーズ

名前Lecture Notes in Civil Engineering
144 LNCE
ISSN(印刷版)2366-2557
ISSN(電子版)2366-2565

会議

会議1st International Symposium on Construction Resources for Environmentally Sustainable Technologies, CREST 2020
国/地域日本
CityFukuoka
Period3/9/213/11/21

!!!All Science Journal Classification (ASJC) codes

  • 土木構造工学

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