Subsection Forward Modeling Technology of Blasting Stress Wave Underground
Yan Bo1 , Zeng Xinwu2
1.College of Basic Education for Officers, National Univ. of Defense Technology, Changsha 410073, China；2.College of Optoelectric Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China
Abstract：The subsection calculating numerical simulating technology is presented to solve the problem of forward modeling of blasting stress wave which spans scales of time, space and strain rate. The simulated region is divided into the blasting source region where the dynamic finite element algorithms are applied and the elastic region where the traditional numerical simulating algorithms are applied, as well as the displacement compatibility boundary conditions of nodes in boundaries between different regions are introduced in the technology. The reasonability and implementation steps of the subsection calculating numerical simulating technology are illustrated. Numerical simulations of stress wave propagation in rock under blasting indicate that the subsection calculating technology is correct and effective.
2013, Vol. 32 
