A revised Chaboche model from multiscale approach to predict the cyclic behavior of type 316 stainless steel at room temperature

Du, Rou; Zhang, Xiaodan; Wang, Huamiao; Liu, Xiaoming; Wei, Yueguang

doi:10.1016/j.ijfatigue.2022.107303

Cited by 6 publications

(1 citation statement)

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“…Chaboche and Rousselier [21,22] succeeded in modeling the rate-dependent mechanical behavior of 316 Stainless Steel based on a unified viscoplastic model including a nonlinear isotropic hardening rule, nonlinear kinematic hardening rule, and viscosity equation in the form of the power function. Since then, this model has been widely used to model the nonlinear mechanical behavior of metals and polymers, and it is called the Chaboche model [23][24][25][26][27]. Unlike 316 Stainless Steel, several experimental studies have been carried out to show that Zircaloy-4 has anisotropic viscoplastic properties due to its microstructural texture [28][29][30][31][32], and that Zircaloy-4 has a more complex kinematic hardening behavior.…”

Section: Introductionmentioning

confidence: 99%

Implementation of ABAQUS User Subroutines for Viscoplasticity of 316 Stainless Steel and Zircaloy-4

Yue,

Zhou

2023

Metals

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This paper describes the formulations for the viscoplasticity of metals based on the Chaboche and Delobelle model. The implementations of the viscoplastic models were detailed herein and then implemented via user subroutines for material models (UMAT) in ABAQUS. Two typical metals, i.e., 316 Stainless Steel and Zircaloy-4, were chosen as examples and their viscoplastic behaviors were captured. Numerical simulations are compared to reported experiments in order to validate the models and the UMAT codes. The typical viscoplastic behaviors of both metals, such as stress relaxation and creep, were captured well through the available experiments. We have publicized all the data and codes.

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