We report an exploratory investigation into the cause of shear band formation in multilayer thin films subject to nanoindentation. The material system considered here is composed of alternating aluminum (Al) and silicon carbide (SiC) nanolayers, atop a silicon (Si) substrate. Finite element models are developed in an attempt to reproduce the shear banding phenomenon observed experimentally. By ...

To increase the toughness of a metallic glass with the nominal composition Zr57Nb5Al10Cu15.4Ni12.6, it was used as the matrix in particulate composites reinforced with W, WC, Ta, and SiC. The composites were tested in compression and tension experiments. Compressive strain to failure increased by more than 300% compared with the unreinforced Zr57Nb5Al10Cu15.4Ni12.6, and energy to break of the t...

The theory of configurational or material forces based on the Eshelby stress tensor (also called energy-momentum tensor) has provided a general and efficient way to describe motion defects other inhomogeneities within framework continuum mechanics. In this paper, we explore how use behavior homogeneous granular materials by considering characteristics both discrete particle levels. particular, ...