A novel contact detection procedure for blocks and its application in discontinuous deformation analysis

作者：Chen, Li Biao^*; Liu, Quan Sheng; Che, Ai Lan

来源：Journal of Shanghai Jiaotong University, 2014, 48(6): 888-892.

• Bounding volume
• Contact detection
• Conventional methods
• Discontinuous deformation analysis
• Implicit grids
• ITS applications
• Number of blocks
• Space decomposition

Linked lists were used for expressing discrete blocks based on the procedure of bounding volume and the implicit grids of space decomposition. And an equivalent loop mode, in which the inner processing depended neither on the horizontal number nor on the vertical number of implicit grids, was obtained from the loop of all discrete blocks. Then, it depended neither on the size of the finite space of discrete mass distribution nor on the number of the discrete blocks. So, the CPU time for contact detection was in direct proportion to the number of blocks. The main results obtained from some examples and numerical tests indicate that the CPU time for contact detection is only in direct proportion to the number of blocks and that the CPU time for contact detection is less with respect to conventional methods.

• 出版日期2014
• 单位上海交通大学