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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Material Behavior Characterization via Multi-Directional Deformation of Sheet Metal
Presentation Title Evalution of Formability in Aluminum Alloys across Strain Rates Using Digital Image Correlation Technique
Author(s) Piyush Upadhyay, Aashish Rohatgi, Yuri Hovanski, Elizabeth Stephens, David Catalini, Rich Davies
On-Site Speaker (Planned) Piyush Upadhyay
Abstract Scope At PNNL we have combined high speed imaging and digital image correlation technique to quantify room temperature deformation behavior of Aluminum alloys. Aluminum sheets were deformed at room temperature at quasi-static and high (exceeding 1000 /s using electrohydraulic forming (EHF) technique) strain-rates. This has resulted in a wealth of spatial and temporal strain data. This work will discuss the deformation behavior of aluminum sheet including strain path, strain- strain rate relationships. The ability of digital image correlation technique to accurately measure strain near the failure region and identify location of safe and unsafe strains strain vis-a-vis conventional grid technique will also be discussed with a focus on several adjustable parameters in commercially available digital image correlation software Vic 3D.
Proceedings Inclusion? Planned: A print-only volume


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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