A viscoplastic model for 316L stainless steel under uniaxial cyclic straining and stressing at room temperature

✍ Scribed by Xianjie Yang

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 710 KB
• Volume: 36
• Category: Article
• ISSN: 0167-6636
• DOI: 10.1016/j.mechmat.2003.08.008

✦ Synopsis

In this paper, a viscoplastic model incorporated with the hardening caused by the combined monotonic and cyclic strain loading is proposed. It is assumed that the isotropic and kinematic hardening rules are dependent on both the cyclic inelastic strain amplitude and the maximum inelastic strain. The current inelastic strain amplitude is described by a memory model in which the current inelastic strain amplitude can be approached very quickly. The fading memory on the previous maximum deformation resistance is taken into account to describe the fading memory on the previous loading history while the deformation resistance is presented by both the maximum inelastic strain and the current inelastic strain amplitude. The comparison between the predicted and experimental results indicated that the model can describe the ratcheting behavior under uniaxial cyclic stressing and the cyclic strain behavior under uniaxial cyclic straining in the unified viscoplastic model.