TY - JOUR
T1 - Improvement of joint definition and determination in three-dimensional discontinuous deformation analysis
AU - Peng, Xinyan
AU - Chen, Guangqi
AU - Yu, Pengcheng
AU - Zhang, Yingbin
AU - Wang, Jinmei
N1 - Funding Information:
This work was supported by the SKLGP open fund ( SKLGP2018K009 ), JSPS KAKENHI (grant numbers JP15K12483 , JP16F16056 , and JP15H01797 ), the National Natural Science Foundation of China (grant numbers 41672286 and 51408511 ), Science & Technology Department of Sichuan Province (grant number 2017JQ0042 ), the Japanese Government (MEXT) Scholarship Program , and the China Scholarship Council (CSC) . Additionally, this work was partly supported by the co-research project conducted by Kyushu University and W-NEXCO . The financial supports are gratefully acknowledged
Funding Information:
This work was supported by the SKLGP open fund (SKLGP2018K009), JSPS KAKENHI (grant numbers JP15K12483, JP16F16056, and JP15H01797), the National Natural Science Foundation of China (grant numbers 41672286 and 51408511), Science & Technology Department of Sichuan Province (grant number 2017JQ0042), the Japanese Government (MEXT) Scholarship Program, and the China Scholarship Council (CSC). Additionally, this work was partly supported by the co-research project conducted by Kyushu University and W-NEXCO. The financial supports are gratefully acknowledged
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/6
Y1 - 2019/6
N2 - Joint property in three-dimensional discontinuous deformation analysis (3-D DDA) is crucial. The joint property in a contact relies upon just one of the contacting objects in original 3-D DDA, which is not always sufficiently accurate and can even yield unreasonable results. To overcome the limitations in original 3-D DDA, an improved joint definition and determination method that simultaneously considers the joint properties of both connected objects for contacts is proposed, which permits the applied joint parameters to change in the simulation. Several numerical examples are evaluated to demonstrate the advantage and applicability of the proposed method. The simulation results computed by the improved 3-D DDA accord well with the analytical expectations and physical reality, while the original 3-D DDA shows unphysical results. The improved 3-D DDA can provide more reliable information in rockslide disaster prevention and mitigation because joint parameters in a contact can be chosen appropriately in real time during simulations. Therefore, the improved 3-D DDA is more applicable and accurate, which can be further extended to more generalized theoretical and engineering problems.
AB - Joint property in three-dimensional discontinuous deformation analysis (3-D DDA) is crucial. The joint property in a contact relies upon just one of the contacting objects in original 3-D DDA, which is not always sufficiently accurate and can even yield unreasonable results. To overcome the limitations in original 3-D DDA, an improved joint definition and determination method that simultaneously considers the joint properties of both connected objects for contacts is proposed, which permits the applied joint parameters to change in the simulation. Several numerical examples are evaluated to demonstrate the advantage and applicability of the proposed method. The simulation results computed by the improved 3-D DDA accord well with the analytical expectations and physical reality, while the original 3-D DDA shows unphysical results. The improved 3-D DDA can provide more reliable information in rockslide disaster prevention and mitigation because joint parameters in a contact can be chosen appropriately in real time during simulations. Therefore, the improved 3-D DDA is more applicable and accurate, which can be further extended to more generalized theoretical and engineering problems.
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U2 - 10.1016/j.compgeo.2019.02.016
DO - 10.1016/j.compgeo.2019.02.016
M3 - Article
AN - SCOPUS:85061774119
SN - 0266-352X
VL - 110
SP - 148
EP - 160
JO - Computers and Geotechnics
JF - Computers and Geotechnics
ER -