Published Online: 10 May 2006
Page Count: 14
van Eeten, P
Solid Mechanics, Royal Institute of Technology (KTH), Stockholm,
(Received 20 April 2005; accepted 24 March 2006)
In this paper, cyclic plastic behavior of 316L stainless steel has been investigated through uniaxial experiments. An elasto-plastic material model is proposed that builds on a Chaboche based model that is readily available in commercial FE-software. The model has been calibrated for 316L through cyclic symmetric strain experiments for a strain range up to 4%. Experiments show that strain loading history and strain range have a significant impact on the behavior of the material. The plasticity model available in FE-codes only depends on the maximum equivalent plastic strain though. More complex material models require a significant number of parameters to be calibrated and require extensive experiments to provide the required calibration data. For most applications this calibration effort is too extensive. To include both phenomena of strain history and strain range dependency, at least in a basic manner, a user subroutine was created that aids the material model in describing these dependencies.
Paper ID: JTE100104