The goal of this research activity is to evaluate the capability of Laser Shock Peening (LSP) technology to improve fatigue life in open-hole aluminium specimens. Thin, dog-bone specimens were LSP treated in direct ablation mode and subsequently tested. The obtained results have not proven the advantage of LSP technology over traditional residual stress insertion techniques around open-holes, such as cold working. Therefore, the focus of the activity was moved towards understanding the causes of the observed fatigue life reduction.
Characterisation of fatigue and crack propagation in Laser Shock Peened open hole 7075-T73 aluminium specimens / G. Ivetic; E. Troiani; I. Meneghin; G. Molinari; J.L. Ocaña; M. Morales; J. Porro; A. Lanciotti; V. Ristori; C. Polese; A. Venter. - STAMPA. - (2011), pp. 855-866. (Intervento presentato al convegno 26th Symposium of the International Committee on Aeronautical Fatigue tenutosi a Montreal, Canada nel 1-3 June 2011).
Characterisation of fatigue and crack propagation in Laser Shock Peened open hole 7075-T73 aluminium specimens
TROIANI, ENRICO;
2011
Abstract
The goal of this research activity is to evaluate the capability of Laser Shock Peening (LSP) technology to improve fatigue life in open-hole aluminium specimens. Thin, dog-bone specimens were LSP treated in direct ablation mode and subsequently tested. The obtained results have not proven the advantage of LSP technology over traditional residual stress insertion techniques around open-holes, such as cold working. Therefore, the focus of the activity was moved towards understanding the causes of the observed fatigue life reduction.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
