Ceramic matrix composites (CMCs) play a crucial role in applications demanding a combination of lightweight and high-resistance to impact loading. The interfacial bonding between reinforcement grains and the matrix can significantly influence the overall mechanical properties of such materials, including energy dissipation and fracture…
Understanding the high-pressure strength of materials is vital to developing physics-based material models for high-velocity impact applications. In this study, we investigate the pressure-dependent dynamic strength behavior of OFHC copper at strain rates of 10^5 s^-1 and pressures approaching 50 GPa. High-pressure shear plate…
The motion of dislocations in the high strain rate and dynamic loading regime has been of great interest due to its implication on the plastic deformation in these regimes. Previous theoretical and computational works have shown that dislocations can move faster than the speed…
For steels that undergo twinning and phase transformation during deformation, the dynamic behavior can differ substantially from quasi-static behavior. As in other metals, the high strain rate response is stronger than the quasi-static response; however, in some cases the high strain rate response is…
Understanding the plastic response of metallic materials subjected to shock loading is critical to the development of advanced materials for aerospace and ballistics applications. The shock response of metals well over the Hugoniot elastic limit (HEL) is well documented in the literature. Less is…
The behavior of energetic materials is significantly influenced by the density, spatial distributions, and morphologies of microstructure heterogeneities and voids. Void density can profoundly influence the shock-to-detonation transition (SDT) in polymer bonded explosives (PBX). Spatial non-uniformity of void density or void density gradients can…
The modeling of physical mechanisms governing damage and fracture under extreme loading conditions has made remarkable progress in recent decades, driven by various industrial demands. However, numerous scientific questions remain unanswered. Particularly in the context of spallation, discussions persist around the interactions between pores…