Parameter identification and modeling of large ratcheting strains in carbon steel
Artikel i vetenskaplig tidskrift, 2006
In this paper the parameter identification procedure of a material
model for large multiaxial ratcheting strains, as proposed in
Johansson et al., (2005), Int J Plasticity 21, 955-980, is demonstrated.
In particular, experimental data for uniaxial and biaxial
ratcheting of carbon steel are considered. The biaxial
experimental data are from Jiang and Sehitoglu, (1994), Int J Plasticity
10, 579-608. The material parameters are identified by means of
optimization algorithms, and a sensitivity analysis is performed.