Investigation on high cycle fatigue-low cycle fatigue life of alloy material

LIU Hong-bin; HUANG Wei-na; CHEN Wei

doi:10.13224/j.cnki.jasp.2014.01.010

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Investigation on high cycle fatigue-low cycle fatigue life of alloy material

更新时间：2026-07-07

- Investigation on high cycle fatigue-low cycle fatigue life of alloy material
- Vol. 29, Issue 1, Pages: 74-80(2014)
- 作者机构：
  
  1. 南京航空航天大学能源与动力学院,南京,210016
  2. 中国航空工业集团公司中国燃气涡轮研究院,成都,610500
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2014.01.010
  CLC：
- Published：2014
- 稿件说明：
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刘红彬, 黄维娜, 陈伟. 合金材料高低周复合疲劳寿命研究[J]. 航空动力学报, 2014, 29(1): 74-80.

doi: 10.13224/j.cnki.jasp.2014.01.010
刘红彬, 黄维娜, 陈伟. 合金材料高低周复合疲劳寿命研究[J]. 航空动力学报, 2014, 29(1): 74-80. DOI： 10.13224/j.cnki.jasp.2014.01.010.

doi: 10.13224/j.cnki.jasp.2014.01.010 DOI：

摘要

就外物损伤对钛合金材料（TC4和TC11）高低周复合疲劳寿命的影响进行了试验研究[D].分别采用摆锤法和空气炮法模拟了叶片外物损伤，对比分析了两类损伤缺口的特征.进行了无损伤试样、损伤试样的疲劳试验，对比分析了外物损伤对钛合金疲劳寿命的影响.结果表明：摆锤冲击试验法模拟的损伤缺乏代表性，空气炮发射弹丸法模拟的损伤更接近真实情况；外物损伤导致钛合金高低周复合疲劳寿命严重下降，空气炮发射弹丸法模拟的损伤使钛合金的疲劳寿命从105下降到104量级.

Abstract

The effects of high cycle fatigue-low fatigue life(HCF-LCF) on titanium alloy (TC4 and TC11) were researched experimentally with foreign object damage (FOD) simulation through pendulum method and air-gas gun method and the features of these two different damage notches were analyzed and compared. Fatigue tests on nondestructive and destructive specimens were further conducted to analyze and compare the effects of FOD on the titanium alloy fatigue life.The conclusions show that:pendulum impact test method simulation lacks of representativeness

while air-gas gun projectile method simulation is much closer to the truth; FOD leads to severe decline of HCF-LCF life of titanium alloy

and air-gas gun projectile method simulation decreases the titanium alloy fatigue life from 105 to 104 order of magnitude.

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