Multi-Scale Modeling of Microstructure Evolution Induced Anisotropy in Metals

Tuncay Yalcinkaya

doi:10.4028/www.scientific.net/KEM.554-557.2388

Paper Titles

Towards Fracture Prediction in Single Point Incremental Forming
p.2355

Simulation of Electromagnetic Forming of a Cross-Shaped Cup by Means of a Viscoplasticity Model Coupled with Damage at Finite Strains
p.2363

Micromechanical Modeling of Damage and Failure in Dual Phase Steels
p.2369

Influence of the Number of Tensile/Compression Cycles on the Fitting of a Mixed Hardening Material Model: Roll Levelling Process Case Study
p.2375

Multi-Scale Modeling of Microstructure Evolution Induced Anisotropy in Metals
p.2388

Test Procedures and Simulation Model Calibration Strategies for Nonlinear Stiffness Behavior of Joints in Large-Scale Structures
p.2400

Numerical Implementation and Finite Element Analysis of Anisotropic Hyperelastic Biomaterials - Influence of Fibers Orientation
p.2414

Numerical Modeling and Digital Image Correlation Strain Measurements of Coated Metal Sheets Submitted to Large Bending Deformation
p.2424

Modelling of Damage in Blanking Processes
p.2432

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Multi-Scale Modeling of Microstructure Evolution Induced Anisotropy in Metals

Abstract:

This paper presents two crystal plasticity based computational constitutive models for the intrinsic formation of plastic microstructure during monotonic loading and its altered evolution under strain path changes in metal forming operations. The formation step is modeled via a non-convex strain gradient crystal plasticity framework which could simulate the intrinsic development of the plastic microstructures. The evolution under strain path changes is modeled via phenomenologically based constitutive equations incorporated into crystal plasticity framework. The latter is capable of simulating the transient anisotropy effects (e.g. cross hardening, Bauschinger effect) depending on the change in the strain path. The paper discusses the unification of such models for the continuous modeling of microstructure formation and evolution processes.