TY - GEN
T1 - Simulation of Crack Initiation and Propagation Using the Improved DDA
AU - Xia, Mingyao
AU - Chen, Guangqi
N1 - Publisher Copyright:
© 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
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U2 - 10.1007/978-981-16-0077-7_30
DO - 10.1007/978-981-16-0077-7_30
M3 - Conference contribution
AN - SCOPUS:85104383753
SN - 9789811600760
T3 - Lecture Notes in Civil Engineering
SP - 327
EP - 335
BT - Advances in Sustainable Construction and Resource Management
A2 - Hazarika, Hemanta
A2 - Madabhushi, Gopal Santana
A2 - Yasuhara, Kazuya
A2 - Bergado, Dennes T.
PB - Springer Science and Business Media Deutschland GmbH
T2 - 1st International Symposium on Construction Resources for Environmentally Sustainable Technologies, CREST 2020
Y2 - 9 March 2021 through 11 March 2021
ER -