TY - JOUR
T1 - Parameter identification and modeling of large ratcheting strains in carbon steel
AU - Johansson, Göran
AU - Ahlström, Johan
AU - Ekh, Magnus
PY - 2006/6
Y1 - 2006/6
N2 - In this paper the parameter identification procedure of a material model for large multi-axial ratcheting strains, as proposed in [Johansson G, Ekh M, Runesson K. Computational modelling of inelastic large ratcheting strains. Int J Plast 2005;20:955-80], is demonstrated. In particular, experimental data for uni-axial and bi-axial ratcheting of carbon steel are considered. The bi-axial experimental data are from [Jiang Y, Sehitoglu H. Cyclic ratcheting of 1070 steel under multiaxial stress states. Int J Plast 1994;10:579-608]. The material parameters are identified by means of optimization algorithms, and a sensitivity analysis is performed.
AB - In this paper the parameter identification procedure of a material model for large multi-axial ratcheting strains, as proposed in [Johansson G, Ekh M, Runesson K. Computational modelling of inelastic large ratcheting strains. Int J Plast 2005;20:955-80], is demonstrated. In particular, experimental data for uni-axial and bi-axial ratcheting of carbon steel are considered. The bi-axial experimental data are from [Jiang Y, Sehitoglu H. Cyclic ratcheting of 1070 steel under multiaxial stress states. Int J Plast 1994;10:579-608]. The material parameters are identified by means of optimization algorithms, and a sensitivity analysis is performed.
KW - Kinematic hardening
KW - Large strains
KW - Parameter identification
KW - Plasticity
KW - Ratcheting
UR - http://www.scopus.com/inward/record.url?scp=33646383339&partnerID=8YFLogxK
U2 - 10.1016/j.compstruc.2006.02.016
DO - 10.1016/j.compstruc.2006.02.016
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AN - SCOPUS:33646383339
SN - 0045-7949
VL - 84
SP - 1002
EP - 1011
JO - Computers and Structures
JF - Computers and Structures
IS - 15-16
ER -