Simulation of fatigue crack growth in residual‐stress‐afflicted specimen with a phase‐field model

Laser shock peening (LSP) is a promising technique to systematically introduce local compressive residual stresses in metal sheets, inhibiting fatigue cracks in these areas. We model fatigue crack growth in these specimen with the help of a phase‐field model for fatigue fracture [1]. First, we param...

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Bibliographic Details
Published inProceedings in applied mathematics and mechanics Vol. 21; no. 1
Main Authors Seiler, Martha, Keller, Sören, Kashaev, Nikolai, Klusemann, Benjamin, Kästner, Markus
Format Journal Article
LanguageEnglish
Published Berlin Wiley-VCH GmbH 01.12.2021
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Summary:Laser shock peening (LSP) is a promising technique to systematically introduce local compressive residual stresses in metal sheets, inhibiting fatigue cracks in these areas. We model fatigue crack growth in these specimen with the help of a phase‐field model for fatigue fracture [1]. First, we parametrise the model using untreated aluminium specimens. In a second step, we use the determined parameters to simulate residual‐stress‐afflicted specimens, qualitatively reproducing the crack inhibition due to LSP.
ISSN:1617-7061
1617-7061
DOI:10.1002/pamm.202100210