Fatigue crack propagation from a cold-worked hole

S. Pasta

Research output: Contribution to journalArticlepeer-review


The cold expansion process is widely used to enhance the fatigue life of structures with fastener holes. Various studies assert that the cold expansion improves the fatigue strength of fastener holes; however, the improvement of fatigue life is difficult to quantify. Therefore, the influence on fatigue life of cold-worked process was studied by numerical and experimental tests. Then, a parametric study on material hardening behavior and Bauschinger's parameter was performed for several loading conditions in order to determine their effect on crack growth propagation. The results of the numerical tests have exhibited a good prediction of the fatigue life of the component.

Original languageEnglish
Pages (from-to)1525-1538
Number of pages14
JournalEngineering Fracture Mechanics
Issue number9
Publication statusPublished - Jun 2007


  • Cold expansion
  • Crack growth analysis
  • Fatigue

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials


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