|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Material Behavior Characterization via Multi-Directional Deformation of Sheet Metal
||Biaxial Loading of Anisotropic Al-6022-T4 Sheets Using Cruciform Specimens
||Nengxiu Deng, Ian Gagnon, Vojtech Kubec, Brad L Kinsey, Yannis Korkolis
|On-Site Speaker (Planned)
A tabletop cruciform specimen testing machine was developed at the Univ. of New Hampshire. The machine has four hydraulic actuators of 26 kN capacity and 12.7 mm displacement. Each loading arm is attached to a linear guide, to ensure that it translates parallel to the machine frame. Furthermore, opposing arms are coupled through a pantograph mechanism, to ensure that they displace equally. During the experiments, the full strain field was acquired using 2D Digital Image Correlation. Proportional loading experiments were performed on anisotropic Al-6022-T4 sheets, of use in the automotive industry. The cruciform specimen geometry prescribed in ISO 16842 was used. From the experiments, contours of constant plastic work were constructed. That data was fitted with the Yld2000-2D anisotropic yield function. The resulting fit was compared to the one that can be obtained from testing of tensile specimens at angles to the rolling direction.
||Planned: A print-only volume