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  1. No Access

    Article

    Three-dimensional numerical manifold method for heat conduction problems with a simplex integral on the boundary

    The three-dimensional numerical manifold method (3D-NMM), which is based on the derivation of Galerkin’s variation, is a powerful calculation tool that uses two cover systems. The 3D-NMM can be used to handle ...

    DeFu Tong, **ongWei Yi, Fei Tan, YuYong Jiao… in Science China Technological Sciences (2024)

  2. No Access

    Article

    Unascertained Measure-Set Pair Analysis Model of Collapse Risk Evaluation in Mountain Tunnels and Its Engineering Application

    Collapse is a major geological disaster that occurs during mountain tunnel construction. However, the accuracy of collapse risk assessment is generally restricted by evaluation factors or methods. This paper p...

    Wu Chen, Guohua Zhang, Yuyong Jiao, Hao Wang in KSCE Journal of Civil Engineering (2021)

  3. No Access

    Article

    The BEM based on conformal Duffy-distance transformation for three-dimensional elasticity problems

    Here, we describe the robust and efficient application of the conventional 3D BEM in solving elasticity problems. We have focused on the precise computation of weakly singular integrals. The conformal Duffy-di...

    Fei Tan, JiaWei Liang, YuYong Jiao, Shuai Zhu… in Science China Technological Sciences (2020)

  4. No Access

    Article

    Experimental study on the influence of temperature cycle on low-rank coal permeability

    The formation temperature is a key factor affecting coalbed methane (CBM) migration in reservoirs. Both the prediction of CBM production and prevention of mine gas disasters require the understanding on the co...

    JunPeng Zou, YuYong Jiao, T. D. Rathnaweera… in Science China Technological Sciences (2020)

  5. Article

    Latest advances in discontinuous deformation analysis method

    YuYong Jiao, Qiang Zhao, Fei Zheng, Long Wang in Science China Technological Sciences (2017)

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    Article

    Improvement of contact calculation in spherical discontinuous deformation analysis

    Discontinuous deformation analysis (DDA) method is a newly developed discrete element method which employs the implicit time-integration scheme to solve the governing equations and the open-close iteration (OC...

    Long Wang, YuYong Jiao, GangHai Huang, Fei Zheng… in Science China Technological Sciences (2017)

  7. No Access

    Article

    An improved three-dimensional spherical DDA model for simulating rock failure

    In this paper, a discontinuous numerical model, namely SDDARF3D (three-dimensional spherical discontinuous deformation analysis for rock failure), is proposed for simulating the whole process of rock failure. Fir...

    YuYong Jiao, GangHai Huang, ZhiYe Zhao, Fei Zheng… in Science China Technological Sciences (2015)