ETD system

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Tesi etd-06212011-200046


Thesis type
Tesi di laurea specialistica
Author
RISTORI, VJOLA
URN
etd-06212011-200046
Title
An Experimental Study of the Application of Laser Shock Peening Technology on Thin Aluminium Specimens
Struttura
INGEGNERIA
Corso di studi
INGEGNERIA AEROSPAZIALE
Supervisors
relatore Prof. Lanciotti, Agostino
correlatore Prof. Troiani, Enrico
Parole chiave
  • Residual Stress
  • Fatigue
  • Laser Shock Peening
Data inizio appello
12/07/2011;
Consultabilità
Completa
Riassunto analitico
The goal of this thesis 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, additional treatment setups were evaluated and it was shown that the sequence of operations plays a crucial role in the increase of fatigue life of the treated thin aluminium specimens.
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