Fatigue crack propagation under biaxial fatigue loading with single overloads

Siddhant Datta, Aditi Chattopadhyay, Nagaraja Iyyer, Nam Phan

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The crack propagation behavior and the governing crack growth micromechanisms in aluminum alloy under in-plane biaxial fatigue loading with single overloads, of different magnitudes and occurring at different fatigue crack lengths, is investigated. The microscale fracture mechanisms governing crack growth behavior under these conditions are identified through detailed fractography. Crack growth retardation behavior observed due to the occurrence of single overloads is correlated with overload magnitude, instantaneous fatigue crack length, crack-tip plasticity and fracture surface morphology. The results obtained provide insight into the relationship between macroscale crack growth behavior to microstructural mechanisms, which is essential to understanding the fatigue behavior of metallic materials under variable amplitude biaxial loading scenarios.

Original languageEnglish (US)
Pages (from-to)103-113
Number of pages11
JournalInternational Journal of Fatigue
Volume109
DOIs
StatePublished - Apr 1 2018

Fingerprint

Fatigue Crack Propagation
Biaxial
Overload
Fatigue crack propagation
Fatigue
Crack Growth
Crack propagation
Fatigue of materials
Fatigue Crack
Fractography
Surface Morphology
Aluminum Alloy
Crack Propagation
Crack Tip
Crack tips
Plasticity
Instantaneous
Surface morphology
Aluminum alloys
Scenarios

Keywords

  • Biaxial fatigue
  • Crack propagation
  • Crack retardation
  • Fractography
  • Overloads

ASJC Scopus subject areas

  • Modeling and Simulation
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Fatigue crack propagation under biaxial fatigue loading with single overloads. / Datta, Siddhant; Chattopadhyay, Aditi; Iyyer, Nagaraja; Phan, Nam.

In: International Journal of Fatigue, Vol. 109, 01.04.2018, p. 103-113.

Research output: Contribution to journalArticle

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