In order to study the behavior of material under finite deformation at various strain rates, the responses of AZ31 Mg sheet are measured under uniaxial (tension and compression) and multiaxial (simple shear) loadings along rolling direction (RD), 45 to rolling direction (DD), 90 to rolling direction (TD), and normal to the sheet (ND) to large strains. The material exhibits positive strain rate ...

Anisotropic mechanical behavior of the Ti-6Al-4V alloy is essential for its forming and service. Generally, it preferable to minimize in-plane anisotropy sheet. The present work investigates by tensile tests along rolling direction (RD), transverse (TD), diagonal (DD) sheet, evaluating anisotropic yield flow behaviors exploring causes these properties. intrinsic deformation mechanism tensioned ...

A technique using a single CCD camera, a precision rotation/translation stage, a telecentric zoom lens, and digital image correlation software is described for measuring surface profiles and surface plastic strain distributions of a bent thin sheet. The measurement principles, based on both parallel and pinhole perspective projections, are outlined and the relevant mathematical equations for co...

– We performed experiments in which tearing pieces of plastic produced a fractal boundary. Similar patterns are commonly observed at the edges of leaves. These patterns can be reproduced by imposing metrics upon thin sheets. We present an energy functional that provides a numerical test-bed for this idea, and derive a continuum theory from it. We find ordinary differential equations that provid...