Phase-field modelling for fatigue crack growth under laser shock peening-induced residual stresses

Research output: Journal contributionsJournal articlesResearchpeer-review

Authors

For the fatigue life of thin-walled components, not only fatigue crack initiation, but also crack growth is decisive. The phase-field method for fracture is a powerful tool to simulate arbitrary crack phenomena. Recently, it has been applied to fatigue fracture. Those models pose an alternative to classical fracture-mechanical approaches for fatigue life estimation. In the first part of this paper, the parameters of a phase-field fatigue model are calibrated and its predictions are compared to results of fatigue crack growth experiments of aluminium sheet material. In the second part, compressive residual stresses are introduced into the components with the help of laser shock peening. It is shown that those residual stresses influence the crack growth rate by retarding and accelerating the crack. In order to study these fatigue mechanisms numerically, a simple strategy to incorporate residual stresses in the phase-field fatigue model is presented and tested with experiments. The study shows that the approach can reproduce the effects of the residual stresses on the crack growth rate.

Original languageEnglish
JournalArchive of Applied Mechanics
Volume91
Issue number8
Pages (from-to)3709-3723
Number of pages15
ISSN0939-1533
DOIs
Publication statusPublished - 01.08.2021

Bibliographical note

The group of M. Kästner thanks the German Research Foundation DFG which supported this work within the Priority Programme 2013 “Targeted Use of Forming Induced Residual Stresses in Metal Components” with Grant number KA 3309/7-2. The authors would like to thank M. Horstmann and H. Tek for the specimen preparation and performing the fatigue tests.

    Research areas

  • Fatigue crack growth, Laser shock peening, Phase-field modelling, Residual stresses
  • Engineering

Documents

DOI

Recently viewed

Researchers

  1. Thies Lüdtke

Publications

  1. Hermann Bahr - Secession
  2. Hermann Bahr
  3. Consistency and Credibility?
  4. Mechanisms of purple moor-grass (Molinia caerulea) encroachment in dry heathland ecosystems with chronic nitrogen inputs
  5. Energiepolitik
  6. Das Publikum virtueller Welten
  7. Die "wahre" Organisation erkennen
  8. Notting Hill Gate 3 Basic
  9. Charting the Emerging Financial Services Ecosystem of Fintechs and Banks
  10. Tree species richness promotes invertebrate herbivory on congeneric native and exotic tree saplings in a young diversity experiment
  11. I've been thinkin' bout you: socially distant relationship pursuit during COVID-19
  12. Dynamiken der ästhetischen Sinnbildung
  13. Job Satisfaction, Management Style, and Occupational Stress among Managerial Employees
  14. Challenging infrastructures of domestic labor
  15. Formale und inhaltliche Charakteristika matthäischer Redaktionspraxis
  16. Analyzing management preferences for sustainability
  17. Landscape dynamics and chronological refinement of the Middle Pleistocene Reinsdorf Sequence of Schöningen, NW Germany
  18. “... but the professionals decide everything”
  19. Marketing in kleinen und mittelständischen Unternehmen
  20. Updating inflation expectations
  21. Umgang mit häuslicher Gewalt
  22. Chemotaxonomy of the Xylariaceae and remarkable bioactive compounds from Xylariales and their associated asexual stages
  23. Colorear por números
  24. Why does repatriate career success vary?
  25. The iPhone’s Failure—Protests and Resistances
  26. Computerspiele – Neue Herausforderungen für die Ethik ?
  27. Mentale Modelle für gesundheitsbezogenes Handeln
  28. § 19 Wechselseitig beteiligte Unternehmen
  29. Education for Sustainable Development Strategies in German Universities.
  30. § 349 Erklärung des Rücktritts
  31. Stakeholders perceptions of the endangered Egyptian vulture
  32. Grundsätze ordnungsmäßigen Corporate Governance Reportings
  33. „Mountainbiken“
  34. Kann Unternehmertum nachhaltig sein?
  35. MSPs for the SDGs