Modeling of kinematic hardening at large biaxial deformations in pearlitic rail steel
Journal article, 2018
Using an Axial-Torsion testing machine, pearlitic R260 steel specimens are twisted until fracture under different axial loads. A well established framework for finite elastoplasticity with kinematic hardening is used to model the deformation of the specimens. In particular, we evaluate the ability of different kinematic hardening laws to predict the observed biaxial load versus displacement response. It is found that the combination of Armstrong-Frederick dynamic recovery and Burlet-Cailletaud radial evanescence saturation is efficient even for the large strains achieved in this study. The results are less conclusive on the appropriateness of replacing the Armstrong-Frederick with an Ohno-Wang type of kinematic hardening law.
international journal of plasticity
p295
v445
p149
Multiaxial
lobelle p
Pearlitic steel
international journal of plasticity
Mechanics
Biaxial
aboche jl
cyclic plasticity
FORMATION (NANOSPD6)6th International Conference on Nanomaterials by Severe Plastic
carbon-steel
1986
critical state
p237
Axial-Torsion
large ratcheting strains
mechanical-properties
high-pressure torsion
finite-element-analysis
dynamic recovery
Finite strains
v2
1995
behavior
crostructure and processing
plastic-deformation
v11
Author
Knut Andreas Meyer
Chalmers, Industrial and Materials Science, Material and Computational Mechanics
Magnus Ekh
Chalmers, Industrial and Materials Science, Material and Computational Mechanics
Johan Ahlström
Chalmers, Industrial and Materials Science, Engineering Materials
International Journal of Solids and Structures
0020-7683 (ISSN)
Vol. 130-131 122-132Influence of anisotropy on deterioration of rail materials (CHARMEC MU34)
Chalmers Railway Mechanics (CHARMEC), 2015-05-18 -- 2020-05-15.
European Commission (EC), 2015-05-18 -- 2020-05-15.
Subject Categories
Mechanical Engineering
Applied Mechanics
Other Materials Engineering
DOI
10.1016/j.ijsolstr.2017.10.007