INFLUENCE OF VARIATION OF ROCKMASS MECHANICS PARAMETERS ON THE DEFORMATION FIELD OF METEORITE IMPACT
岩体力学参数的变化对陨石撞击形变场影响规律的探讨

Aiming to meteorite impact affair of Cangshan,the nonlinear program ANSYS/LS-DYNA is used to analyze the influence of variation of the mechanical parameters of rockmasses on the emergence,development and evolvement of the deformation field of meteorite impact by using symmetric penalized-function method. Some useful curves are obtained to describe the relationship between typical rock mechanics parameters and the impact deformation field of meteorite.