Journal of Failure Analysis and Prevention

, Volume 16, Issue 3, pp 391–399 | Cite as

Investigation of the Influence of Small Hole on the Fatigue Crack Growth Path

  • Xing-Quan Zhang
  • Xin Zhang
  • Long Li
  • Shi-Wei Duan
  • Sheng-Zhi Li
  • Zhi-Lai Huang
  • Yi-Wei Zhang
  • Jian-You Feng
Technical Article---Peer-Reviewed
  • 191 Downloads

Abstract

The goal of this paper is to investigate the fatigue crack growth (FCG) path in 7075-T6 aluminum alloy affected by small hole. The codes ANSYS and FRANC3D are jointly used to compute the stress intensity factors and predict the FCG path. The predicted results show that the fatigue crack turns its growth direction toward the hole. The different locations and sizes of single hole have different influences on the FCG paths, while two symmetrically distributed holes have no effects on the FCG path. The predicted FCG paths are validated by the related FCG test results.

Keywords

Stress intensity factor (SIF) Fatigue crack growth (FCG) Crack path Hole 

Notes

Acknowledgments

The authors are grateful for the support provided by the National Natural Science Foundation of China (No. 51175002) and the National Natural Science Foundation of Anhui province (No. 090414156).

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Copyright information

© ASM International 2016

Authors and Affiliations

  • Xing-Quan Zhang
    • 1
  • Xin Zhang
    • 1
  • Long Li
    • 1
  • Shi-Wei Duan
    • 1
  • Sheng-Zhi Li
    • 1
  • Zhi-Lai Huang
    • 1
  • Yi-Wei Zhang
    • 1
  • Jian-You Feng
    • 1
  1. 1.School of Mechanical EngineeringAnHui University of TechnologyMa’anshanChina

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