Evolution of a laser shock peened residual stress field locally with foreign object damage and subsequent fatigue crack growth

Foreign object damage (FOD) can seriously shorten the fatigue lives of components. On the other hand, laser shock peening improves fatigue life by introducing deep compressive residual stress into components. In this paper we examine how the non-uniform steep residual stress profile arising from FOD...

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Veröffentlicht in:	Acta materialia 2015-01, Vol.83 (1, 2015), p.216-226
Hauptverfasser:	Zabeen, S., Preuss, M., Withers, P.J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Crack propagation Damage Fatigue crack growth Fatigue failure Fatigue life Foreign object damage (FOD) Fracture mechanics Lasers Leading edges Residual stress Ti–6Al–4V X-ray diffraction
Online-Zugang:	Volltext
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