ELASTIC-PLASTIC ANALYSIS OF 3D MACRO-MICRO TWO SCALE MODEL WITH LINEAR MIXED HARDENING

ZHOU JiangBei; SUN Qin; CHEN XianMin

doi:10.16579/j.issn.1001.9669.2018.04.015

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ELASTIC-PLASTIC ANALYSIS OF 3D MACRO-MICRO TWO SCALE MODEL WITH LINEAR MIXED HARDENING

更新时间：2022-09-22

- ELASTIC-PLASTIC ANALYSIS OF 3D MACRO-MICRO TWO SCALE MODEL WITH LINEAR MIXED HARDENING
- Journal of Mechanical Strength Vol. 40, Issue 4, Pages: 852-856(2018)
- 作者机构：
  
  1. 中国飞机强度研究所
  2. 西北工业大学
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2018.04.015
  CLC：
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ZHOU JiangBei, SUN Qin, CHEN XianMin. ELASTIC-PLASTIC ANALYSIS OF 3D MACRO-MICRO TWO SCALE MODEL WITH LINEAR MIXED HARDENING. [J]. 40(4):852-856(2018)
DOI：

ZHOU JiangBei, SUN Qin, CHEN XianMin. ELASTIC-PLASTIC ANALYSIS OF 3D MACRO-MICRO TWO SCALE MODEL WITH LINEAR MIXED HARDENING. [J]. 40(4):852-856(2018) DOI： 10.16579/j.issn.1001.9669.2018.04.015.

摘要

宏微观双尺度弹塑性模型通过宏微观联系因子获得微观尺度上的塑性应变,它是探讨高周疲劳损伤累积及其破坏机理的有效理论方法。基于双尺度弹塑性模型基本理论,研究了宏观载荷作用下具有塑性强化机制的微观应力应变演变规律,编写程序算法实现了比例混合塑性强化微观应力应变滞回曲线的求解。利用有限元软件Abaqus建立了三维实体模型,通过弹塑性分析获得相应的应力应变及其等效应力应变滞回曲线。对比有限元与本文算法结果,验证并校核了双尺度模型算法的有效性。

Abstract

The theory of macro-micro two scale model obtains the micro plastic strains by using the macro-micro connecting factor,which is an effective theory to investigate the damage accumulation of the high fatigue and its failure mechanism.Based on the macro-micro theory,the evolution rule of the micro stresses and strains with plastic hardening was studied,and it solved the micro stresses and strains of the three-dimensional models by making programs,which considered the linear mixed plastic hardening.It established the 3 D finite element models,and calculated the micro stresses and strains and obtains the equivalent stress-strain hysteresis loops with linear mixed hardening.Compared with the finite element results,the effectiveness of the algorithm results is verified.

关键词

宏微观双尺度模型线性混合塑性强化有限元模型算法程序滞回曲线

Keywords

Macro-micro two scale modelLinear mixed plastic hardeningFinite element modelAlgorithm programHysteresis curve

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