High-temperature fretting fatigue life prediction model based on continuum damage mechanics

吴博伟; 张宏建; 崔海涛; 王楠

doi:10.13224/j.cnki.jasp.2019.03.017

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High-temperature fretting fatigue life prediction model based on continuum damage mechanics

更新时间：2026-07-07

- High-temperature fretting fatigue life prediction model based on continuum damage mechanics
- Vol. 34, Issue 3, Pages: 656-663(2019)
- 作者机构：
  
  南京航空航天大学能源与动力学院工信部航空发动机热环境与热结构重点实验室,南京,210016
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2019.03.017
  CLC：
- Published：2019
- 稿件说明：
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吴博伟, 张宏建, 崔海涛, 王楠. 基于连续介质损伤力学的高温微动疲劳寿命预测模型[J]. 航空动力学报, 2019, 34(3): 656-663.

doi: 10.13224/j.cnki.jasp.2019.03.017
吴博伟, 张宏建, 崔海涛, 王楠. 基于连续介质损伤力学的高温微动疲劳寿命预测模型[J]. 航空动力学报, 2019, 34(3): 656-663. DOI： 10.13224/j.cnki.jasp.2019.03.017.

doi: 10.13224/j.cnki.jasp.2019.03.017 DOI：

摘要

建立了一种基于连接介质损伤力学(CDM)的高温微动疲劳寿命预测模型用以分析航空发动机榫连接结构在不同温度下的微动疲劳寿命。该模型在现有的基于非线性疲劳损伤累积(NLCD)模型微动疲劳寿命预测模型的基础上，引入温度相关的损伤速率因子以考虑温度对榫连接结构微动疲劳行为的影响。以某型发动机钛合金TC11燕尾榫结构模拟件为研究对象开展不同温度下的微动疲劳寿命数值模拟预测研究，预测结果与试验结果相比在2倍误差范围以内，证明了此寿命预测模型的有效性。

Abstract

A high-temperature fretting fatigue life prediction model based on continuum damage mechanics (CDM) was developed to predict the fretting fatigue life of the aero engine dovetail joint structure at different temperatures. Considering the complex influence of temperature on the fretting fatigue

the temperature dependent damage rate factor was introduced in the fretting fatigue life prediction model based on non-linear continuous damage (NLCD) model. The model was used to predict the fretting fatigue life of titanium alloy TC11 dovetail joint structure of an engine simulated samples at different temperatures. Compared with the test results

the life predictions were within 2 times of the error range

proving the validity of the life prediction model.

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Related Author

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CHEN Wei

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Related Institution

College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics

School of Jet Propulsion, Beijing University of Aeronautics and Astronautics

Hunan Aviation Powerplant Research Institute， Aero Engine Corporation of China

Institute of Engineering Thermophysics，Chinese Academy of Sciences

Institute of Aero Engine，Tsinghua University

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