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Meeting NUMIFORM 2019: The 13th International Conference on Numerical Methods in Industrial Forming Processes
Symposium S-01: Modeling of the Anisotropic Behavior in Plasticity
Presentation Title Material Modeling and Forming Limit Analysis of 6016-T4 Aluminum Alloy Sheet
Author(s) Yu Ogasawara, Tomoyuki Hakoyama, Hiroki Takeda, Toshihiko Kuwabara, Frédéric Barlat
On-Site Speaker (Planned) Yu Ogasawara
Abstract Scope This study investigates the material modeling and forming limit analysis of a 6016-T4 aluminum alloy sheet. Servo-controlled biaxial tensile tests using both cruciform and tubular specimens are performed for many linear stress paths in the first quadrant of stress space. The shapes of plastic work contours slightly change with plastic work while the direction of the plastic strain rate is almost constant for each linear stress path. Appropriate parameters and exponent of the Yld2000-2d yield function (Barlat et al., 2003) are determined so that it can reproduce the biaxial deformation behavior of the test material. Moreover, using the Marciniak–Kuczyński approach (Marciniak and Kuczyński, 1967), the material model is used to calculate the forming limit curve (FLC), forming limit stress curve (FLSC), and Forming limit plastic work (FLPW) for the linear stress paths. The calculated FLC, FLSC and FLPW are compared with the measured ones to discuss the effect of material models on the predictive accuracy of the forming limit analysis.
Proceedings Inclusion? Undecided


A Comparative Study between Elasto-plastic Self-consistent Crystal Plasticity and Anisotropic Yield Function with Distortional Hardening Formulations for Sheet Metal Forming
Accurate Modeling of Experimental Strain-hardening Characteristics for Series of High Strength Steel
An Anisotropic Yield Model Reduced From The Yld2004-18p Function For Metals With Gentle Anisotropy Under Triaxial Loading
An Application of Homogeneous Anisotropic Hardening Model to Earing Predictions of Pre-strained Material
An Experimental Study on Yield Surface Evolution of a Trip-assisted Steel
Applications of a Stress Invariants-based Yield Criterion to DP980 & QP980 Steels
Characterization of Anisotropic Yield Criteria Using an Indentation Based Technique for Steel Sheets
Comparison of Strain-path Indicators for Analysis of Processes in Sheet-bulk Metal Forming
Determination of Strain Dependent Anisotropy in Layer Compression Tests and Resulting Influence on the Yield Locus Modelling
Material Modeling and Forming Limit Analysis of 6016-T4 Aluminum Alloy Sheet
Measurement of Unloading Behavior of AHSS and Its Effect on the Springback Prediction in FEM Simulation
Modeling of Sheet Metal Forming Based on Implicit Embedding of the Elasto-plastic Self-consistent Formulation in Finite Elements: Application to Cup Drawing of AA6022-T4
Modeling of the Differential Hardening of Pure Titanium Sheet and Application to Hole Expansion Forming Simulation
Numerical Integration of Isotropic and Anisotropic Plasticity Models
Plastic Anisotropy from Single Crystal to Multi-phase Steels
Prestraining Effect on Failure Behavior in Hole-Expansion Test of AA6022-T4 Sheet
Rate-dependent Tension and Compression Hardening Behaviors of Ahss for Sheet Metal Forming Simulation
Springback Prediction in Roll Forming using Nonlinear Kinematic and Homogeneous Anisotropic Hardening Models
Study on Hot Deformation Behavior and Microstructure of 5CrNiMoV Steel using Constitutive Modeling and Processing Map
Theory and Application Study of Springback Prediction Accuracy for QP Steel with Different Material Hardening Models

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