Validation of Kinematic Hardening Parameters from Different Stress States and Levels of Plastic Strain with the Use of the Cyclic Bending Test

Martin Rosenschon; Sebastian Suttner; Marion Merklein

doi:10.4028/www.scientific.net/KEM.639.385

Paper Titles

Cold Formability of Automotive Sheet Metals: Anisotropy, Localization, Damage and Ductile Fracture
p.353

Investigation on the Strain Behaviour of a Precipitation-Hardenable Aluminium Alloy through a Temperature Gradient Based Heat Treatment
p.361

Identification of Plasticity Model Parameters of the Heat-Affected Zone in Resistance Spot Welded Martensitic Boron Steel
p.369

Influence of Stress Relaxation after Uniaxial Pre-Straining on Subsequent Plastic Yielding in the Uniaxial Tensile Test of Sheet Metal
p.377

Validation of Kinematic Hardening Parameters from Different Stress States and Levels of Plastic Strain with the Use of the Cyclic Bending Test
p.385

Analysis and Optimization for the Production Process of an Automotive Alternator Using FEM and Experiments
p.395

Experimental and Numerical Investigation on a Pressure Dependent Friction Model
p.403

A Constitutive Model for the Simulation of the Deformation Behavior of TWIP Steels
p.411

Numerical Prediction of Failure within Small Curvature Bending of Advanced High Strength Steels
p.419

HomeKey Engineering MaterialsKey Engineering Materials Vol. 639Validation of Kinematic Hardening Parameters from...

Validation of Kinematic Hardening Parameters from Different Stress States and Levels of Plastic Strain with the Use of the Cyclic Bending Test

Abstract:

The recent development of new lightweight sheet metal materials, like advanced high-strength steels or aluminium alloys, in combination with an increasing component complexity provides new challenges to the numerical material modelling in the FEM based process design. An auspicious approach to improve the quality of the numerical results – most notably in springback analysis – is the modelling of the so called Bauschinger effect achieved through implementation of kinematic hardening models. Within this paper the influence of the stress state and the level of pre-strain on the numerical simulation result of the advanced high strength steel DP-K45/78+Z will be analysed. For this purpose, a parameter identification of the kinematic hardening law according to Chaboche and Rousselier is performed at different pre-strains on the basis of experimental data from tension-compression tests as well as cyclic shear tests. Finally, the identified parameters are validated in a comparison between numerical and experimental results of a cyclic bending test.

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Periodical:

Key Engineering Materials (Volume 639)

Pages:

385-392

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.639.385

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Online since:

March 2015

Authors:

Martin Rosenschon*, Sebastian Suttner, Marion Merklein

Keywords:

Kinematic Hardening, Metal Forming, Modelling

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