Forming Limit Analysis of Hexagonal Metal Considering Volume Fraction of Deformation Twinning

Tomoaki Koga; Yuichi Tadano

doi:10.4028/www.scientific.net/KEM.794.226

Paper Titles

Dynamic Axial Compression of Square CFRP/Aluminium Tubes
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A Three-Dimensional Formulation of Phase Field Model Representing Polycrystalline Solidification
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Meshfree Analysis of Higher-Order Gradient Crystal Plasticity Using Nodal Integration
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Development of Bifurcation Analysis Method for Rate Dependent Materials
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Forming Limit Analysis of Hexagonal Metal Considering Volume Fraction of Deformation Twinning
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Three Dimensional Finite Element Simulation of Strip Shape and Flatness of High Strength Steel
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Macroscopic and Microscopic Non-Uniform Deformations of Polycrystalline Pure Copper during Uniaxial Tensile Test with High Stress Gradient
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A Damage Mechanics Based Cohesive Zone Model with Damage Gradient Extension for Creep-Fatigue-Interaction
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Finite Element Calculation of Anisotropy of Hole Expansion in a Thin Steel Sheet with Six Degrees Polynomial Yield Function
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 794Forming Limit Analysis of Hexagonal Metal...

Forming Limit Analysis of Hexagonal Metal Considering Volume Fraction of Deformation Twinning

Abstract:

In the plastic deformation of hexagonal metals, deformation twinning plays an important role as well as slip deformation. Therefore, a modelling of deformation twinning is essential in the crystal plasticity modeling. In this study, a model considering the volume fraction of deformation twinning is presented in the framework of crystal plasticity, and it is combined with a finite element-based homogenization scheme to represent the polycrystalline behavior. The presented model is adopted to a sheet necking formulation. Plastic flow behaviors under several strain paths are evaluated using the present framework, and the effect of volume fraction of deformation twinning on the formability of hexagonal metal is discussed.

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Periodical:

Key Engineering Materials (Volume 794)

Pages:

226-231

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.794.226

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Online since:

February 2019

Authors:

Tomoaki Koga, Yuichi Tadano*

Keywords:

Crystal Plasticity, Deformation Twinning, Forming Limit, Hexagonal Metal

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