Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
A COMPREHENSIVE MODEL FOR THE COUPLED PREDICTIVE ASSESSMENT OF RESIDUAL STRESSES AND DEFORMATIONS IN LASER SHOCK PROCESSING OF METALLIC MATERIALS
Year:2017
Research Areas
  • Mechanical engineering
Information
Abstract
One of the most recent and promising techniques for the application of thermo-mechanical surface treatments to high reliability metallic components is Laser Shock Processing (LSP), a technique using the high peak power of short pulse lasers to generate an intense shock wave into the treated material finally leading to the generation of a compressive residual stresses field definitely protecting the component against crack initiation and propagation, thus improving its mechanical response and its in-service fatigue life. Laser Shock Processing has revealed itself in the last years as a powerful technique able to substitute with advantage classical surface conditioning techniques used for analogous purposes but implying important unpredictability and environmental drawbacks, as i.e. shot peening. A conceptually relevant feature of Laser Shock Processing is its high degree of predictability allowing for a close control of the thermomechanical effects induced in the treated materials. The development of experimentally consistent numerical prediction models is, however, a key assignment for the development and applicability of the technique to real components and is, in turn, the key for the truly adjusted design of mechanical high reliability elements with maximum warranty of quality and durability. In the present paper, a summary of the developments achieved by the authors in the field of the predictive assessment of Laser Shock Processing is presented along with some practical examples of the design-motivated improvements in different kinds of components achievable by application of the technique. Special emphasis is placed on the realistic consideration of the mechanical behavior of the treated materials under shocking conditions and the analysis of typical LSP configurations in which the mutual interaction of residual stresses and deformations can play a relevant role.
International
Si
Congress
XIII Congresso Ibero-Americano de Engenharia Mecânica
960
Place
Lisboa
Reviewers
Si
ISBN/ISSN
978-989-95683-4-1
Start Date
23/10/2017
End Date
26/10/2017
From page
108
To page
108
XIII Congresso Ibero-Americano de Engenharia Mecânica
Participants
  • Autor: Ignacio Pedro Angulo Ramonell (UPM)
  • Autor: Angel Garcia Beltran (UPM)
  • Autor: Miguel Morales Furio (UPM)
  • Autor: Juan Antonio Porro Gonzalez (UPM)
  • Autor: Francisco Cordovilla Baro (UPM)
  • Autor: Jose Luis Ocaña Moreno (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Investigación en Ingeniería y Aplicaciones del Láser
  • Grupo de Investigación: Manufactura Avanzada con Láser
  • Centro o Instituto I+D+i: Centro Laser
  • Departamento: Física Aplicada e Ingeniería de Materiales
  • Departamento: Automática, Ingeniería Eléctrica y Electrónica e Informática Industrial
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)