A NEW FATIGUE MODEL OF GEAR BASED ON CONSTITUTIVE THEORY OF DAMAGE

XU HeMing; HUANG ZaiXing; QIANG Lei; XIAO Ye

doi:10.16579/j.issn.1001.9669.2017.02.029

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A NEW FATIGUE MODEL OF GEAR BASED ON CONSTITUTIVE THEORY OF DAMAGE

更新时间：2022-09-22

- A NEW FATIGUE MODEL OF GEAR BASED ON CONSTITUTIVE THEORY OF DAMAGE
- Journal of Mechanical Strength Vol. 39, Issue 2, Pages: 417-422(2017)
- 作者机构：
  
  1. 南京航空航天大学机械结构力学及控制国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2017.02.029
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XU HeMing, HUANG ZaiXing, QIANG Lei, et al. A NEW FATIGUE MODEL OF GEAR BASED ON CONSTITUTIVE THEORY OF DAMAGE. [J]. 39(2):417-422(2017)
DOI：

XU HeMing, HUANG ZaiXing, QIANG Lei, et al. A NEW FATIGUE MODEL OF GEAR BASED ON CONSTITUTIVE THEORY OF DAMAGE. [J]. 39(2):417-422(2017) DOI： 10.16579/j.issn.1001.9669.2017.02.029.

摘要

在损伤本构模型基础上,依据Lemaitre-Chaboche塑性损伤理论,建立了一种新的齿轮材料疲劳损伤模型,导出了齿轮材料的疲劳寿命理论方程,结果表明基于损伤本构的疲劳损伤模型正确反映了材料属性、三轴应力比、应力幅值水平对疲劳寿命的影响,而且给出了这种新的理论疲劳理论模型算例验证,分析了该模型与传统名义应力S-N曲线形式的统一性,为预测齿轮材料的寿命提供了一种新的途径。

Abstract

A new fatigue damage model is established by introducing an isotropic damage variable into the LemaitreChaboche plastic damage theory. Based on this model,a fatigue life equation is determined,that can reasonably characterize the influence of the material property,tri-axial stress ratio and stress amplitude on the fatigue life of material. The fatigue life of gears is investigated. The results show that theoretical prediction fits well with the S-N curve given by practical measuring.

关键词

齿轮弯曲应力有限元分析Lemaitre-Chaboche塑性损伤理论疲劳损伤模型疲劳寿命

Keywords

Gear bending stressFinite element analysisPlastic damage theoryFatigue damage modelFatigue life

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School of Mechanical Engineering,Dalian University of Technology

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