Influence of specimen thickness on the fatigue behavior of notched steel plates subjected to laser shock peening

• Published in: Optics and laser technology Vol. 101; pp. 531 - 544
• Main Authors: Granados-Alejo, V., Rubio-González, C., Vázquez-Jiménez, C.A., Banderas, J.A., Gómez-Rosas, G.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.05.2018; Elsevier BV
• Subjects: Crack initiation; Crack propagation; Distribution; Duplex stainless steels; Fatigue failure; Fatigue life; Finite element method; Fracture mechanics; Hole drilling method; Influence; Laser shock peening; Laser shock processing; Life extension; Mathematical analysis; Neodymium lasers; Peening; Plastic deformation; Plastic strain; Predictions; Residual stress; Size effects; Stainless steel; Steel plates; Strain distribution; Stress concentration; Stress distribution; Studies; YAG lasers; Fatigue life; Laser shock peening; Residual stress

•Thickness affects significantly fatigue life of laser treated components.•The thinner the specimen the better the LSP benefit on fatigue life extension.•The thinner the specimen the higher the plastic strain produced by LSP.•Life extension up to 300% is experimentally observed on thin specimens wit...