Chaboche本构模型应用与研究进展

Application and Research Progress of Chaboche Constitutive Model

Chaboche模型是一种基于运动强化、各向同性强化和时间恢复效应描述循环硬化、软化,以及热恢复的统一黏塑性模型。它的提出主要是为了解决循环载荷作用下结构的非弹性分析。本文概述了Chaboche模型的原始表达式及近年来的应用现状,并依次对模型改进、算法选择、参数确定与优化等应用中的热点问题的研究现状进行了分析介绍。

Chaboche model is a unified viscoplastic model based on kinematic strengthening,isotropic hardening and time recovery effects to describe cyclic hardening,softening,and thermal recovery.It is proposed for inelastic analysis to mainly solve the structures under cyclic loading.This paper summarizes the original expression of Chaboche model and its application status in recent years,and analyzes and introduces the research status of hot issues in the application of model improvement,algorithm selection,parameter determination and optimization.