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[1]刘士杰,王召,刘继超,等.基于Chaboche硬化模型的304SS全寿命循环力学行为仿真分析[J].火箭推进,2022,48(03):40-49.
　LIU Shijie,WANG Zhao,LIU Jichao,et al.Simulation analysis of 304SS full-life cyclic mechanical behavior based on Chaboche hardening model[J].Journal of Rocket Propulsion,2022,48(03):40-49.
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基于Chaboche硬化模型的304SS全寿命循环力学行为仿真分析

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 48 期数: 2022年03期 页码: 40-49 栏目: 研究与设计 出版日期: 2022-06-22
Title:
Simulation analysis of 304SS full-life cyclic mechanical behavior based on Chaboche hardening model
文章编号:
1672-9374(2022)03-0040-10
作者:
刘士杰1; 王召2; 刘继超3; 梁国柱4
(1.北京航天动力研究所低温液体推进技术实验室,北京1000762.北京航天动力研究所,北京1000763.北京机床研究所有限公司,北京1001024.北京航空航天大学宇航学院,北京102206)
Author(s):
LIU Shijie1;  WANG Zhao2;  LIU Jichao3;  LIANG Guozhu4
(1.Laboratory of Science and Technology onCryogenic Liquid Propulsion,Beijing Aerospace Propulsion Institute,Beijing 100076, China 2.Beijing Aerospace Propulsion Institute, Beijing 100076, China 3.Beijing Machine Tool Research Institutive-Precision Mechatronics Co., Ltd., Beijing 100102, China 4.School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 102206, China)
关键词:
304SS Chaboche硬化模型 屈服平台 应变控试验 仿真
Keywords:
304 stainless steel Chaboche hardening model yield plateau strain controlled experiment simulation
分类号:
V250.3,O341
文献标志码:
A
摘要:
以研究Chaboche硬化模型对低循环载荷下304SS全寿命循环力学行为仿真的可行性为目的。首先,结合试验数据与仿真结果,分析导致Chaboche随动/混合硬化模型无法模拟屈服平台效应问题的原因 然后,对可以模拟前四分之一个循环和稳定迟滞环的模型进行分析,据此给出问题的解决方案 最后,程序验证Chaboche硬化模型对304SS在±0.8应变控制下完整循环力学响应模拟的可行性。结果表明:①304SS具有明显的屈服平台效应,它的初始屈服应力为200 MPa左右,而屈服强度达到400 MPa,这是无法利用一套Chaboche硬化模型参数对全寿命循环进行模拟的主要原因 ②304SS以±0.9应变范围为界表现出Masing/Non-Masing效应,利用±0.8应变控制循环曲线确定的304SS Ramberg-Osgood模型常数n0=34.713,ε0=0.002 24,σ0=430 MPa,该组参数不适用于±3.0高循环应变载荷控制的力学行为曲线 ③适合304SS前四分之一个循环的Chaboche随动硬化模型参数是:C1=744 639 MPa,χ1=155 193,C2=71 633 MPa,χ2=3 014,C3=20 608 MPa,χ3=1 051,σy=380 MPa。由于背应力的差异,无法对前四分之一个循环和后继循环分别采用不同的硬化模型参数来模拟304SS全寿命循环的应力应变曲线。研究结果可为304SS结构件的力学行为仿真分析提供参考。
Abstract:
The purpose of this paper is to study the feasibility of the Chaboche hardening model to simulate the mechanical behavior of 304SS full life cycle under low cyclic load.Firstly, combined with the experimental data and simulation results, the reasons why the Chaboche follow-up/hybrid hardening model cannot simulate the yielding platform effect are analyzed.Then, the model that can simulate the first quarter cycle and the stable hysteresis loop is analyzed, and the solution of the problem is given accordingly.Finally, the feasibility of the Chaboche hardening model for simulating the full-cycle mechanical response of 304SS under±0.8 strain control is verified by the program.The results show that:① 304SS has an obvious yield plateau effect.Its initial yield stress is about 200 MPa and its yield strength reaches 400 MPa, which is the main reason why a set of the Chaboche hardening model parameters cannot be used to simulate the full life cycle ② 304SS shows the Masing/Non-Masing effect with the±0.9 strain range as the boundary.The 304SS Ramberg-Osgood model constants determined by the±0.8 strain control cycle curve are n0=34.713, ε0=0.002 24, σ0=430 MPa.This group of parameters is not suitable for the mechanical behavior curve of±3.0 high cyclic strain load control ③ The parameters of the Chaboche kinematic hardening model suitable for the first quarter cycle of 304SS are:C1=744 639 MPa, χ1=155 193, C2=71 633 MPa, χ2=3 014, C3=20 608 MPa, χ3=1 051, σy=380 MPa.Due to the difference in back stress, it is impossible to use different hardening model parameters for the first quarter cycle and subsequent cycles to simulate the stress-strain curve of 304SS full life cycle.This paper can provide a reference for the simulation analysis of mechanical behavior for 304SS structural components.

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备注/Memo

收稿日期:2021-01-30 修回日期:2021-04-11
基金项目:中国航天推进技术研究院可靠性保证中心研究课题
作者简介:刘士杰(1985—),男,博士,高级工程师,研究领域为液体火箭发动机可重复使用性设计与仿真方法、火箭发动机部件疲劳寿命理论与试验。
通信作者:梁国柱(1966—),男,教授,研究领域为火箭发动机设计、仿真与优化集成,火箭发动机点火与燃烧动态过程试验。

更新日期/Last Update: 1900-01-01