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Meeting NUMISHEET 2022: The 12th International Conference on Numerical Simulation of 3D Sheet Metal Forming Processes
Symposium NUMISHEET 2022
Presentation Title Coefficients Optimization with Load Cycles for New Homogeneous Anisotropic Hardening Model (HAH20)
Author(s) Shin-Yeong Lee, Jin-Hwan Kim, Frédéric Barlat
On-Site Speaker (Planned) Shin-Yeong Lee
Abstract Scope In this study, the homogeneous anisotropic hardening model (HAH), specially developed to describe strain-path-change effects, was recently updated with a number of new features including a more accurate description of permanent softening. Accordingly, the coefficient identification was updated for this improved model, so-called HAH20, but a validation of the procedure is necessary. For this purpose, a DP780 advanced high strength steel (AHSS) sheet sample is used in this work to validate the reverse-loading behavior in tension-compression and shear cycle tests. Single and multiple reversal stress-strain curves are carried out. The five HAH20 reverse loading coefficients are optimized by reducing the difference between the simulated and experimental flow curves using hybrid optimization algorithms. The hydrostatic pressure influence on plastic flow and the elastic chord modulus degradation are also considered in the calibration of the coefficients. The best experimental procedure and the most efficient optimization methodology are discussed in this study.
Proceedings Inclusion? Definite: At-meeting proceedings


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A Comparative Study of Incremental Sheet Forming Process to Achieve Optimal Accuracy
A Machine Learning Based Framework to Predict Local Strain Distribution, Fracture and the Evolution of Plastic Anisotropy in AlSi10Mg Alloy
A New Material Model for Thermo-mechanical Finite Element Analysis of Al-Mg Alloy in Warm Forming Conditions
A New Sample for Oscillation Free Force Measurement at High Strain Rates and Its Physical Principles
A Novel Testing Methodology for In-situ Microstructural Characterisation during Continuous Strain Path Change
A Numerical Study of Local Elastic Tool Deformation in Sheet Metal Forming Simulation
A Phase-field Modeling Study of Sheared Edge Formability of Steels
A Study on Microstructural Evolution during Forming of Thin Foil of Commercially Pure Titanium
A Thermal Extension of the GISSMO Fracture Framework for Hot-stamping Operations
A Virtual Laboratory Based on Full-field Crystal Plasticity Simulations to Predict the Anisotropic Mechanical Properties of Advanced High Strength Steels
Accurate Evaluation of Friction and Wear during Stamping Operations Using Metal Forming Tribometer
An Approach to Characterize the Post Necking Behavior Based on Anisotropic Hardening
An Artificial Intelligence Tool for Predicting the Crash Pulse Response in a Crashworthiness Application of Vehicle Lightweighting
An Effective Way to a Digital Process Model
An Efficient Methodology to Characterize Anisotropic Sheet Metals from Uniaxial to Plane Strain Tension Using Notch Tests
An Experimental Methodology to Measure the Through-thickness Strain Gradients in the VDA 238-100 Tight Radius Bend Test
An Inverse Engineering Approach for the Calibration of Advanced Plasticity and Fracture Models for QP980 Steel
Analysis and Evaluation of the Clamping Force on the Tool Surface during the Blanking Process
Analysis of Damage and Fracture Mechanisms in Steel Sheets: Biaxial Experiments and Numerical Simulations
Analysis of Functional Cup of Titanium with Corrugated Structure
Analysis of Plane Strain Tension Regions of Anisotropic Yield Criteria for Sheet Metals
Analysis on Deformation Behavior of High Strength Steel Using the Finite Element Method in Conjunction with Constitutive Model Considering the Elongation at Yield Point
Anisotropic Failure Characterization and Modeling of Advanced High Strength Steels
Anisotropic Time-dependent Continuum Damage-coupled Plasticity Model for Predicting Ductile Fracture of 6xxx Series Aluminum Alloys
Automotive Sheet Metal Panels Buckling Instability Prediction in the Design Stage Based on Convolutional Neural Network
Characterization of Cohesive Zone Model Properties of Laminated Metal Sheet with a Thin Adhesive Layer
Characterization of Kinematic Hardening Using Two-stage Hydraulic Bulge Test
Coefficients Optimization with Load Cycles for New Homogeneous Anisotropic Hardening Model (HAH20)
Comparison of Experimental and Finite Element Analysis Results of a Car Body Part with the Optimization of Material Parameters
Comparison of Non-associated Fourth-order and Associated Sixth-order Anisotropic Plasticity Models in Sheet Metal Forming Simulations
Constitutive Behaviour of AA7075 at Elevated Temperatures
Convergence Behaviors of Anisotropic Hardening Models in Finite Element Framework
Coupled Crystal Plasticity Finite Element-cellular Automaton Approach to Model Microstructural Evolution in AZ31 Magnesium Alloy Hot-rolled Sheet
Crystal Plasticity Analysis of Plastic Deformation Behavior of a 6022-T4 Aluminum Alloy Sheet under Various Strain Paths
Crystal Plasticity Modelling of Large Strain Behaviour of Ti Sheet Alloys
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Damage Evolution in DP600 Sheets Using a Combined Finite Element – Cellular Automata Model
Deformation and Failure Behavior of Steel under High Strain Rate and Multiaxial Loading
Deformation and Fracture in Micro-stamping Process
Deformation Mechanism of a Novel Double-sheet Incremental Forming
Design Guideline of the Bolt Hole Based on the Parametric Formability Analysis
Determination of the Evolution of the Contact Conditions that Affect the Tool Wear Behaviour during Hot Stamping of Aluminium Alloys by Integrating Laboratory Tests and Finite Element Analysis
Development of a Digital Twin Metamodel for Closed-loop Control of Progressive Dies
Development of a Hot Cutting Process for Functional Parts by Stress State Dependent Damage Modeling
Die Quench Thermal and Friction Boundary Conditions
Dimensional Compliance through Springback Reduction, Countermeasure, and Compensation – A Digital Engineering Perspective
DP1180 Material Calibration between Sheet Metal Simulation and Prototype
Draw Die Development to Maximize Aluminum Formability Potential for Making Styling Featured Outer Panels
Effect of Current Carrying Length in Electric Pulse Aided Deformation
Effect of Laser Patterning on Static Loading Performance in Cylindrical 22MnB5 Tube
Effect of Pre-deformation on the Shape Evolution of Yield Surfaces for Anisotropic Mg Alloy: Experiments and Constitutive Modeling
Effect of Strain Gradient Sensitivity on Stretch Flange Deformation Limit Strain of Steel Sheets
Effect of Strain Rate on Formability of 22MnB5 Steel during Hot Stamping Process
Effect of Thermal Treatment on Deep Drawability of AA3xxx Alloy
Effect of Width/Thickness Effect of Sheet Metals on Bendability
Effects of Temperature on Deep Drawing of an Aluminum Alloy for Different Yield Criteria and Hardening Models
Enhanced Isotropic Hardening Modeling of Orthotropic Sheet Metals
Evaluating Lubricants for Warm Forming of Aluminum 6xxx Alloys
Evaluation of the Effect of Material Surface Texturing in the Galling and Friction of Aluminum Stamping
Evolution of the R-value and Its Determination Based on Reverse Fitting for Sheet Metal
Experimental and Numerical Evaluation of DP600 Fracture Limits
Experimental and Numerical Study on the Effect of Support Force in Double Sided Incremental Forming
Experimental Investigation of Strain Hardening Up to Large Deformation by In-plane Torsion Test for 5182 alloy
Experimental Setting and Calculation Method on Interfacial Heat Transfer Coefficient in Hot Stamping Process
Fatigue Life Prediction of a Deep-drawn Cylindrical Cup
FE Simulations about the Influence of Work Hardening Derived from Embossing Process on Hole-expansion of Duplex Embossed Sheet
Finite Element Analysis of Micro/Meso-scale Parts Formed through Incremental Micro-forming (μISF)
Finite Element and Experimental Investigation of Multi-stage Deep Drawing of Stainless Steel 304 Sheets at Elevated Temperature
Forming-induced Distortion of Dissimilar Ti-Al Laminated Composite Plate after Non-equal Channel Lateral Co-extrusion
Forming-structural Coupled Analysis: The method to Predict Die Deformation using Quick Simulations
Fracture Characterization in Combined Shear and Tension: Evaluation of Specimen Geometry
Identification and Validation of Brass Material Parameters Using Single Point Incremental Forming
Identification and Validation of the Plasticity and Failure Parameters for EN AW-6061 T4 Aluminium Sheet
Identification of Dynamic Hardening Properties with Acceleration by the Virtual Fields Method
Identification of fracture limits for dual phase steels for successful industrial application in sheet metal forming simulations
Impact of Thermal Conditions on Predicted Formability of TRIP Steels
Implementation of Polynomial Yield Functions and Flow Potentials in Finite Element User Material Subroutines
Implementation of Real Contact Areas into Sheet Metal Forming Simulations Using Digital Spotting Images
Influence of Loading Direction on the Mechanical Parameters of Pre-formed Materials in Tensile Test
Influence of Process Parameters on Orange Peel Effect in Warm Incremental Forming of Magnesium Alloy AZ31 Sheet
Influence of the Orthotropic Behaviour on Defects Prediction in Cup Drawing, Reverse Redrawing and Expansion
Investigating the Formability and Failure Mechanism of an Advanced High Strength Steel by a Microstructure Based Hierarchy Modeling Approach
Investigating the Microstructure Evolution during Uniaxial Deformation on a Dual Phase Steel by In-situ Measurement and Crystal Plasticity Finite Element Model
Investigation of the Deformation Behaviour in Relation to the Stress State by Means of Cross Profile Deep Drawing Tests
Investigation on the High Strain Rate Formability of Al-Cu-Mg Alloy by Solid-liquid Coupling Simulation
Kinematic Hardening with Negative Back-stress to Model Yield Point Phenomenon Including Anisotropy
Kinematic or Tool-bound Forming Processes? – An Approach for a Systematic Characterization
Learning Product Properties with Small Data in Forming Simulations
Local Heat Treatment for Springback Reduction in Deep Drawing of Advanced High-strength Steel
Manufacturing Problems for Complex Shells Made from the Bent Metal Sheet
Meso-scale Modeling of Spot Weld Failure in Hot Stamped Automotive Steel Using Hardness Mapping Approach
Microstructure Modelling of the HEC Behaviour of a Novel Vanadium DP980 Cold Rolled Alloy
Modeling and Optimization of Stretching for Double Curvature Fuselage Panel
Modeling of the Anisotropic Evolution of Yield Surface Based on Non-associated Flow Rule
Modeling of the Strain Rate Sensitivity of the Damage/Fracture Behavior of the AA5754 Aluminum Alloy during a Stamping Operation
Modelling Induction Heating of Aluminium Sheets for Hot Stamping
Neutron Diffraction and Crystal Plasticity Analysis on Q&P Steel in Deformation
NIST Mechanical Tests for Generating Constitutive Data for the Numisheet 2020 Benchmark Materials
Numerical and Experimental Study of Single Point Incremental Forming of Sheet Metal
Numerical Description of the Physical Properties of Stretch Web Connectors in Progressive Die Stamping
Numerical Investigation of a Two-stage Shear Cutting Process Considering Cutting Line Geometry, Wear Condition and Cutting-offset
Numerical Modeling and Optimization of Fiber Metal Laminates
Numerical Prediction of Failure in Single Point Incremental Forming Using a New Yield Criterion for Sheet Metal
Numerical Prediction of Stretch Flange Cracks Using a Necking Initiation Model
Numerical Simulation of Chain-die Forming Based on LS-DYNA
Numerical Simulation of Gravity Loading and QUICKFORM Sheet Metal Forming Finite Element Solver
Numerical Study of the Maximum Force Principle to Predict Necking under Stretch-bending
Numerically Coupled Tools for Double Sided Incremental Sheet Forming
On the Calculation of Anisotropic Behavior for F.S.S Sheet under Associated and Non-associated Flow Rule Approach
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On the Potential of Convolutional Neural Networks for Estimating Structure-property Relationships
On the prediction of a bifurcating structural fracture response using recurrent neural networks
On the Prediction of the Plastic Instability of AA7075-O and H240LA Steel Sheets under Complex Deformation Histories
Optimization of Slip Conditions in Roll Forming by Numerical Simulation
Performance of Constitutive Models in Finite Element Analysis
Plane Strain Pure Bending under Tension with Damage Evolution
Plastic Anisotropy Prediction of Aluminum Using a Multi-scale Numerical Model
Plenary: Simulation of Warm Forming of 7000-Series Aluminum Alloys for Automotive Structures
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Predicting Forming Limit Diagrams Using CPFE Incorporated M-K Model for AZ31 Sheet
Predicting the Flow and Failure Properties of Dual Phase Steel Using Phenomenological Models
Prediction of Deformation and Failure Anisotropy for Magnesium Sheets under Mixed-mode Loading
Prediction of Ductile Fracture in Bainitic Steel with Dependence on Stress States and Loading Orientation
Prediction of Failure in Sheet Metal Forming Simulation - An Integrated Approach for Shell and Solid Discretization
Prediction of Springback in U-draw Bending of TRIP1180 with Bauschinger Effect Calibration
Predictions of Necking and Fracture in Sheet Metal Forming of the Laser-Welded Blank with GEN3 AHSS
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Research on Electric Current-assisted Draw-bending of AA7075-T6 Sheet
Research on Fracture Behavior of Steel Material for Battery Shell
Research on Simulation Analysis of Metal Rubber Sealing System Model
Sensitivity Study of Plastic Anisotropy on Failure Prediction in Hole-expansion
Shape Optimization of a Cruciform-like Specimen for Combined Tension and Shear Loading
Sheet Forming Simulations with Advanced Constitutive Modeling
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Simplified Identification Method of Yield Function Using Circumscribing Polygon of Yield Surface and Its Application for Deep-drawing Process
Springback Investigation of Advanced Path-dependent Constitutive Models for Sheet Metal Forming
Springback vs Blank Holder Force: Evaluation and Validation of a Part Made from Non-stable Austenitic 1.4301 Steel
Strain and Stress Forming Limit for Inconel 718 Superalloy
Strain Rate Dependence of Ductility and Austenite Transformation in Q&P Steels
Structural Optimization of an Automotive Engine Cradle Design Considering Sheet Metal Insert and Fiber-reinforced Thermoplastic Polymer Overmolding
Study on the Influence of the Strain Rate Sensitivity on the Springback of the AA5086 Alloy under Warm Forming Conditions
Studying the Micromechanical Behaviors of a Polycrystalline Metal by Artificial Neural Networks
Surface Texture Design for Sheet Metal Forming Applications
Tensile Mechanical Properties of Steel-Al Explosion-bonded Clad Plate
The Development of Constitutive Parameters for an 1800 MPa Press Hardening Steel
The Effect of Twinning/Detwinning on the Evolution of Texture and Microstructure under Cyclic Loading of AZ31 Magnesium Alloy
The Importance of the Choice of the Yield Criterion in Triaxiality Evaluation for Highly Anisotropic Zirlo Sheets
The Influence of Manufacturing Tolerances and Scatter in Material Properties on Joint Point Loadings in Car Body Structures under Global Bending and Torsion
The Influence of Tool Types on Surface Topography in Incremental Sheet Forming
Theoretical and Finite Element Analysis of New phenomena in Fully-dense Materials Displaying Tension-compression Asymmetry for Combined Axial-torsion Loadings
Time Dependent Method for the Inverse Evaluation of Yield Locus Using Nakazima Experiments
Tool Surface Functionalization for Improved Tribological System in Sheet Metal Forming Applications
Towards Development of a Machine-learning Based Universal Plasticity Model of Sheet Metal under Arbitrary Loadings
Transformation in the Transportation Industry: Recent Advances in Simulation Technology
Tube Hydroforming: Material Characterization and Friction Measurement
Validation of Comprehensive Material and Friction Models for Simulation of Thermo Mechanical Forming of High Strength Aluminium Alloys Using HFQ Technology
Yield Surface Prediction by Virtual Microstructure and Testing
Young’s Modulus under Non-proportional Load Paths

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