Modeling of Successive Impacts in Sand

by Chaim J. Poran, Univ of North Carolina, Charlotte, United States,
Jorge A. Rodriquez, Univ of North Carolina, Charlotte, United States,

Document Type: Proceeding Paper

Part of: Mechanics Computing in 1990's and Beyond


The principal aspects of numerical modeling of successive, high energy impacts in sand are discussed in this paper. These include the numerical formulation used for solution of the equations of motion and integration of the constitutive equations, plasticity model for the soil, representation of the impact loading, and effects of very large deformations (induced by successive impacts) on both boundary conditions and soil representation. Computed results of global displacements show good correlation to available experimental data.

Subject Headings: Soil deformation | Sandy soils | Soil properties | Equations of motion | Numerical models | Numerical methods | Constitutive relations | Impact loads

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