Induction of through-thickness compressive residual stress fields in thin Al2024-T351 plates by laser shock processing

Ocaña Moreno, José Luis and Correa Guinea, Carlos and Porro González, Juan Antonio and Diaz Muñoz, Marcos and Ruiz de Lara de Luis, Leonardo and Peral Jiménez, David (2014). Induction of through-thickness compressive residual stress fields in thin Al2024-T351 plates by laser shock processing. In: "2nd International Conference of the International Journal of Structural Integrity", 1-4 sept. 2014, Funchal, Madeira, Portugal. pp. 1-13.

Description

Title: Induction of through-thickness compressive residual stress fields in thin Al2024-T351 plates by laser shock processing
Author/s:
  • Ocaña Moreno, José Luis
  • Correa Guinea, Carlos
  • Porro González, Juan Antonio
  • Diaz Muñoz, Marcos
  • Ruiz de Lara de Luis, Leonardo
  • Peral Jiménez, David
Item Type: Presentation at Congress or Conference (Article)
Event Title: 2nd International Conference of the International Journal of Structural Integrity
Event Dates: 1-4 sept. 2014
Event Location: Funchal, Madeira, Portugal
Title of Book: 2nd International Conference of the International Journal of Structural Integrity
Date: 2014
Subjects:
Faculty: E.T.S.I. Industriales (UPM)
Department: Física Aplicada e Ingeniería de Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Laser Shock Processing (LSP) has been demonstrated as an emerging technique for the induction of RS’s fields in subsurface layers of relatively thick specimens. However, the LSP treatment of relatively thin specimens brings, as an additional consequence, the possible bending in a process of laser shock forming. This effect poses a new class of problems regarding the attainment of specified RS’s depth profiles in the mentioned type of sheets, and, what can be more critical, an overall deformation of the treated component. The analysis of the problem of LSP treatment for induction of tentatively through-thickness RS’s fields for fatigue life enhancement in relatively thin sheets in a way compatible with reduced overall workpiece deformation due to spring-back self-equilibration is envisaged in this paper. The coupled theoretical-experimental predictive approach developed by the authors has been applied to the specification of LSP treatments for achievement of RS's fields tentatively able to retard crack propagation on normalized specimens. A convergence between numerical code results and experimental results coming from direct RS's measurement is presented as a first step for the treatment of the normalized specimens under optimized conditions and verification of the crack retardation properties virtually induced.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainMAT2012-37782UnspecifiedUnspecifiedUnspecified

More information

Item ID: 37013
DC Identifier: http://oa.upm.es/37013/
OAI Identifier: oai:oa.upm.es:37013
Official URL: http://ijsi2014.inegi.up.pt/index.html
Deposited by: Memoria Investigacion
Deposited on: 16 Mar 2016 16:36
Last Modified: 03 Mar 2017 19:28
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