Abstract: A combined numerical and analytical study of penetration of concrete by high-velocity (∼1.8 km/s) projectiles has been conducted in order to study the effects of concrete's constitutive modeling on penetration calculations. ...

Abstract: The purpose of this study is to derive macroscopic equations of motion in saturated porous media for non‐Newtonian Bingham fluids (i.e., fluids exhibiting a yield stress) based on conceptual microscopic models of the porous ...

Abstract: Spherical-nose copper and tantalum rods with aspect ratios between 4.0 and 14.6 were gun launched against 91-cm-diameter and 91-cm-long concrete and simulant reinforced-concrete targets with velocities ranging from 0.15 ...

Abstract: Three-dimensional axisymmetric calculations of penetration of concrete targets have been conducted with the CALE (Arbitrary Lagrangian Eulerian) code. All the constitutive models studied accounted for the compressibility ...

Abstract: The steady flow of non-Newtonian Herschel-Bulkley fluids over a one-to-two axisymmetric sudden expansion was studied numerically. Finite difference numerical solutions of the governing continuity ...

Abstract: A combined experimental and computational study was carried out to investigate the laminar flow of a nonlinear viscoplastic fluid through an axisymmetric sudden expansion. The yield-stress, power-law ...