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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Material Behavior Characterization via Multi-Directional Deformation of Sheet Metal
Presentation Title Optimization of Biaxial Tensile Test Specimen Design
Author(s) Dilip Kumar Banerjee, Mark Iadicola, Adam Creuziger, Timothy Foecke
On-Site Speaker (Planned) Dilip Kumar Banerjee
Abstract Scope Biaxial testing is becoming prevalent in the sheet metal forming industry for determining mechanical properties of sheet material. One main reason behind this is that the sheet metal is largely anisotropic and traditional stress-strain data from uniaxial tests may not be applicable to multi-directional forming process. An important issue for successful biaxial testing is the specimen design itself. Typically a cross-shaped specimen (“cruciform”) is used for biaxial tests. Over the years, a large number of specimen designs have been used. Although various cruciform specimen types have been investigated, no standard geometry exists. Finite element (FE) models are developed to simulate cruciform biaxial tensile tests based on selection of an initial specimen design. FE models are verified by comparing simulated displacement and strain data with experimental results. Subsequently, calibrated FE model is used to obtain an optimum shape of the specimen by proper selection of design variables and objective function.
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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