A method for determination of parameters in total strain life equation

WANG Yan-rong; LI Hong-xin; YUAN Shan-hu; WEI Da-sheng; SHI Liang

doi:10.13224/j.cnki.jasp.2014.04.019

Chinese

您当前的位置：

首页 >

文章列表页 >

A method for determination of parameters in total strain life equation

更新时间：2026-07-07

- A method for determination of parameters in total strain life equation
- Vol. 29, Issue 4, Pages: 881-886(2014)
- 作者机构：
  
  1. 北京航空航天大学能源与动力工程学院,北京,100191
  2. 先进航空发动机协同创新中心,北京,100191
  3. 中国航空工业集团公司沈阳发动机设计研究所,沈阳,110015
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2014.04.019
  CLC：
- Published：2014
- 稿件说明：
移动端阅览
王延荣, 李宏新, 袁善虎, 魏大盛, 石亮. 确定总应变寿命方程参数的一种方法[J]. 航空动力学报, 2014, 29(4): 881-886.

doi: 10.13224/j.cnki.jasp.2014.04.019
王延荣, 李宏新, 袁善虎, 魏大盛, 石亮. 确定总应变寿命方程参数的一种方法[J]. 航空动力学报, 2014, 29(4): 881-886. DOI： 10.13224/j.cnki.jasp.2014.04.019.

doi: 10.13224/j.cnki.jasp.2014.04.019 DOI：

摘要

为了使总应变寿命方程能够在较大寿命范围内具有理想的预测精度且其参数物理意义明确

基于总应变寿命方程中疲劳强度系数与疲劳延性系数的物理意义

建立了总应变寿命方程参数与单调拉伸强度极限和断面收缩率之间的关系

并结合TC4

GH4169及GH901合金的单调拉伸及疲劳试验数据

对其各自的总应变寿命方程参数进行了拟合

进而开展了疲劳寿命预测.结果表明:采用该方法确定的总应变寿命方程参数具有明确的物理意义

且对TC4

GH4169及GH901合金的疲劳寿命预测结果较为理想

其分散带基本在2倍以内.

Abstract

In order to improve the prediction precision of total strain life equation in a wide range of fatigue life with the equation parameters having definite physical significance

the relationship among parameters of total strain life equation

monotonic ultimate tensile stress and percentage reduction of area was established based on the physical significance of the fatigue strength coefficient and the fatigue ductility coefficient of total strain life equation. Parameters in the total strain life equation for TC4

GH4169 and GH901 alloy were fitted and fatigue life predictions were carried out combining with monotonic tensile and fatigue test data. The results show that fatigue life predictions using the total strain life equation with the parameters fitted by the developed approach give better estimation within a scatter band of about two for TC4

GH4169 and GH901 alloy.

关键词

Keywords

references

Views

894

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

A method for determination of exponents in total strain life equation.

Method to determine modified influence exponent of stress gradient considering stress ratio

Creep⁃fatigue life prediction method of tail edge holes in turbine blade for a turboshaft engine

Influence of small hole on thermal mechanical fatigue in single crystal superalloy DD6

考虑多源不确定性的复合材料风扇叶片高周疲劳失效概率评估

Related Author

刘香

王延荣

田爱梅

魏大盛

马梦弟

Wei LI

Kanghe JIANG

Li MA

Related Institution

北京航空航天大学宇航学院

先进航空发动机协同创新中心

北京航空航天大学能源与动力工程学院

Hunan Aviation Powerplant Research Institute， Aero Engine Corporation of China

Institute of Engineering Thermophysics，Chinese Academy of Sciences

AI问答

Postal code：100079
Tel：（010）53879206 Email：tmw@bjxintong.com.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09082226号-64 京公网安备11010602201714号
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰