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Cone-complementary manifold method for stability and failure analysis of jointed/fractured rock masses
Abstract Taking advantage of a unique dual-cover system, the numerical manifold method (NMM) is a powerful tool for analyzing stability and progressive failure of jointed/fractured rock masses. In this study, a new implicit cone complementary (CC) formulation is integrated into the NMM to capture the dynamic frictional-cohesive contact problems in jointed/fractured rock masses. The innovative numerical method, termed as the CC-NMM, circumvents numerical difficulties of using artificial contact penalty and open-close iteration in the original NMM. Benchmark examples demonstrate that both mechanical energy and translational momentum of the system are conserved in the proposed CC-NMM. Several examples are further designed to illustrate the excellent performance of the CC-NMM in simulating the progressive failure pattern and stability of the jointed/fractured rock masses.
Cone-complementary manifold method for stability and failure analysis of jointed/fractured rock masses
Abstract Taking advantage of a unique dual-cover system, the numerical manifold method (NMM) is a powerful tool for analyzing stability and progressive failure of jointed/fractured rock masses. In this study, a new implicit cone complementary (CC) formulation is integrated into the NMM to capture the dynamic frictional-cohesive contact problems in jointed/fractured rock masses. The innovative numerical method, termed as the CC-NMM, circumvents numerical difficulties of using artificial contact penalty and open-close iteration in the original NMM. Benchmark examples demonstrate that both mechanical energy and translational momentum of the system are conserved in the proposed CC-NMM. Several examples are further designed to illustrate the excellent performance of the CC-NMM in simulating the progressive failure pattern and stability of the jointed/fractured rock masses.
Cone-complementary manifold method for stability and failure analysis of jointed/fractured rock masses
Fan, Huo (author) / Huang, Duruo (author) / Wang, Gang (author)
2020-11-26
Article (Journal)
Electronic Resource
English
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