303 応力波の伝播と自由面との干渉(OS 材料・構造の動的特性(1))

抄録

We make a new SPH (Smoothed Particle Hydrodynamics) code based on MLS (Moving Least Squares) method to analyze the dynamics of stress wave. The new code is examined by the simulation of an elastic wave interacted with a free surface. The result using the new code is compared with both the result of SPH and the experimental results of the model blasting using the electric detonator. The elastic wave emanates from the charge hole and interacts with the free surface. Propagation of elastic wave and reflection at the free surface are well simulated by the new method compared with SPH method.