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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Material Behavior Characterization via Multi-Directional Deformation of Sheet Metal
Presentation Title Biaxial Loading of Anisotropic Al-6022-T4 Sheets Using Cruciform Specimens
Author(s) Nengxiu Deng, Ian Gagnon, Vojtech Kubec, Brad L Kinsey, Yannis Korkolis
On-Site Speaker (Planned) Yannis Korkolis
Abstract Scope 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.
Proceedings Inclusion? Planned: A print-only volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Novel In-situ Planar Biaxial Experiment
Advanced Cruciform Testing at the NIST Center for Automotive Lightweighting
An Experimental and Microstructural Investigation of Biaxial Bauschinger Effects in Sheet Metals
An Experimentally Validated, Microstructure Based Model for Forming of Low-symmetry Alpha-uranium
Biaxial Loading of Anisotropic Al-6022-T4 Sheets Using Cruciform Specimens
Determination of Bending Limit Curves for Aluminium Alloy AA6014-T4: An Experimental Approach
Dilational Response of Voided Polycrystals
Effect of Complex Strain Paths on Microstructure Evolution Studied by In-situ Neutron Diffraction
Evalution of Formability in Aluminum Alloys across Strain Rates Using Digital Image Correlation Technique
Hardening Behavior of 316L SS Subject to Biaxial Strain Path Change: Multiscale Modeling for Guiding Experiments
Inflation of Stainless Steel 304L Microtubes under Axial Tension and Internal Pressure to Assess the Plastic Anisotropy
Modeling Anisotropic Hardening and Nonlinear Elasticity under Loading Path Change
Multi-scale Analysis of Springback in Microforming of Thin Nickel Sheets
On the Non-proportional Deformation of Sheet Steel Using In-situ Diffraction and Modelling Methods
Onset of Plasticity via Relaxation Analysis (OPRA)
Optimization of Biaxial Tensile Test Specimen Design
Predicting Cyclic Deformation of AA6022-T4 and DP590 Using Polycrystal Plasticity
Sensitivity Analysis of the Bauschinger Behavior on Bending Springback for Prestrained Sheets
The Influence of Deformation Mechanisms on Forming of Commercially Pure Titanium Sheets

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