Fatigue in laser shock peened open-hole thin aluminium specimens

Ivetic, G.; Meneghin, I.; Troiani, E.; Molinari, G.; Ocaña Moreno, José Luis; Morales Furió, Miguel; Porro González, Juan Antonio; Lanciotti, A.; Ristori, V.; Polese, Claudia; Plaisier, J. y Lausi, A. (2012). Fatigue in laser shock peened open-hole thin aluminium specimens. "Materials Science and Engineering: A", v. 542 ; pp. 573-579. ISSN 0921-5093. https://doi.org/10.1016/j.msea.2011.12.010.

Descripción

Título: Fatigue in laser shock peened open-hole thin aluminium specimens
Autor/es:
  • Ivetic, G.
  • Meneghin, I.
  • Troiani, E.
  • Molinari, G.
  • Ocaña Moreno, José Luis
  • Morales Furió, Miguel
  • Porro González, Juan Antonio
  • Lanciotti, A.
  • Ristori, V.
  • Polese, Claudia
  • Plaisier, J.
  • Lausi, A.
Tipo de Documento: Artículo
Título de Revista/Publicación: Materials Science and Engineering: A
Fecha: Febrero 2012
Volumen: 542
Materias:
Palabras Clave Informales: Laser shock peening; Aluminium alloys; Synchrotron X-ray diffraction; Fatigue; Finite element method
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Física Aplicada a la Ingeniería Industrial [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

An experimental study was performed in order to determine the influence of the sequence of operations on the effectiveness of Laser Shock Peening (LSP) treatment in increasing the fatigue performances of open-hole aluminium specimens. Residual stress measurements, fractographic analysis and FEM analysis were performed, indicating the presence of compressive residual stresses on the surface of the treated specimens and tensile residual stresses in the mid-section along the thickness of the specimens. Negative effects on fatigue lives were encountered on the specimens with the hole already present, while positive effect were observed in specimens in which the hole was drilled after LSP treatment. These results indicate that LSP can be a good solution for “in production” application, in which open holes are to be drilled after the LSP treatment. The application in which LSP is used “in service” on structures with pre-existing cut-outs, has proven to be impracticable in the investigated configuration.

Más información

ID de Registro: 20788
Identificador DC: http://oa.upm.es/20788/
Identificador OAI: oai:oa.upm.es:20788
Identificador DOI: 10.1016/j.msea.2011.12.010
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0921509311013669#
Depositado por: Memoria Investigacion
Depositado el: 01 Mar 2014 14:20
Ultima Modificación: 03 Mar 2017 16:46
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