Theoretical modeling of crack arrest by inserting interference fit fasteners

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The repair technology under consideration involves drilling a number of holes along a crack in a metal part and inserting fasteners (bolts, rivets, or pins) into the holes with a predetermined interference fit. A fracture mechanics-based model is proposed to study the decrease in the crack growth rate after repair. A parametric analysis is performed to discover the effect of geometry and materials on crack retardation. Elastic-plastic contact stress distributions in the specimens during cyclic loading are determined by the finite element method. The results show that a significant enhancement of fatigue life until crack re-initiation can be achieved through an optimal set of parameters: number of fasteners, their material, and interference fit. The model is validated using a comparison of fatigue tests of the specimens.

Original languageEnglish (US)
Pages (from-to)317-324
Number of pages8
JournalInternational Journal of Fatigue
Volume25
Issue number4
DOIs
StatePublished - Apr 2003

Fingerprint

Fasteners
Crack
Interference
Cracks
Repair
Modeling
Fatigue of materials
Rivets
Crack Growth Rate
Contact Stress
Parametric Analysis
Cyclic Loading
Fracture Mechanics
Drilling
Fatigue Life
Stress Distribution
Bolts
Fracture mechanics
Fatigue
Stress concentration

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Theoretical modeling of crack arrest by inserting interference fit fasteners. / Shkarayev, Sergey V.

In: International Journal of Fatigue, Vol. 25, No. 4, 04.2003, p. 317-324.

Research output: Contribution to journalArticle

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