Ratchetting: Recent progresses in phenomenon observation, constitutive modeling and application

Benchmark experiments and characteristic cyclic plasticity deformation

Influence of non-proportional loading on ratcheting responses and simulations by two recent cyclic plasticity models

Time-dependent ratchetting experiments of SS304 stainless steel

The paper discusses the derivation and the numerical implementation of a finite strain material model for non-linear kinematic and isotropic hardening. The kinematic hardening component represents a continuum extension of the classical rheological model of Armstrong–Frederick kinematic hardening. In addition, a comparison between several numerical algorithms for the integration of the evolution equations is conducted. In particular, a new form of the exponential map that preserves the plastic volume and the symmetry of the internal variables, as well as two modifications of the backward Euler scheme are discussed. Finally, the applicability of the model for springback prediction is demonstrated by performing simulations of the draw-bending process and a comparison with experiments. The results show an excellent agreement between simulation and experiment. Copyright © 2007 John Wiley & Sons, Ltd.

On the modelling of non‐linear kinematic hardening at finite strains with application to springback—Comparison of time integration algorithms

Experimental study on uniaxial and nonproportionally multiaxial ratcheting of SS304 stainless steel at room and high temperatures

Uniaxial ratcheting and failure behaviors of two steels

Experimental study on uniaxial and multiaxial strain cyclic characteristics and ratcheting of 316L stainless steel

The uniaxial time-dependent strain cyclic behaviors and ratcheting of SS304 stainless steel were studied at high temperatures (350 °C and 700 °C). The effects of straining and stressing rates, holding time at the peak and/or valley of each cycle in addition to ambient temperature on the cyclic softeninglhardening behavior and ratcheting of the material were discussed. It can be seen from experimental results that the material presents remarkable time dependence at 700 °C, and the ratcheting strain depends greatly on the stressing rate, holding time and ambient temperature, Some significant conclusions are obtained, which are useful to build a constitutive model describing the time-dependent cyclic deformation of the material.

Yafang Sun

Papers

Time-dependent ratchetting experiments of SS304 stainless steel

Experimental study on uniaxial and nonproportionally multiaxial ratcheting of SS304 stainless steel at room and high temperatures

Uniaxial ratcheting and failure behaviors of two steels

Experimental study on uniaxial and multiaxial strain cyclic characteristics and ratcheting of 316L stainless steel

Uniaxial Time-Dependent Ratcheting of SS304 Stainless Steel at High Temperatures