Modeling of kinematic hardening at large biaxial deformations in pearlitic rail steel
Artikel i vetenskaplig tidskrift, 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.
large ratcheting strains
plastic-deformation
international journal of plasticity
1986
finite-element-analysis
v2
v11
carbon-steel
critical state
crostructure and processing
mechanical-properties
Mechanics
v445
Axial-Torsion
behavior
p237
international journal of plasticity
cyclic plasticity
FORMATION (NANOSPD6)6th International Conference on Nanomaterials by Severe Plastic
aboche jl
dynamic recovery
Finite strains
1995
Multiaxial
p295
high-pressure torsion
p149
Pearlitic steel
lobelle p
Biaxial
Författare
Knut Andreas Meyer
Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik
Magnus Ekh
Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik
Johan Ahlström
Chalmers, Industri- och materialvetenskap, Konstruktionsmaterial
International Journal of Solids and Structures
0020-7683 (ISSN)
Vol. 130 122-132Ämneskategorier
Maskinteknik
DOI
10.1016/j.ijsolstr.2017.10.007