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Memorias de investigación
Communications at congresses:
On the Loading-rate Dependence of the Al 7017-T73 Fracture-initiation Toughness
Year:2014
Research Areas
  • Mechanical engineering
Information
Abstract
While static fracture toughness is a widely studied and standardised parameter, its dynamic counterpart has not been exhaustively examined. Therefore, in this research a series of quasi-static and different loading-rate dynamic tests were carried out to determine the evolution of fracture toughness with the velocity of the application of the load on aluminium 7017-T73 alloy. Three-point bending tests of pre-fatigued standard specimens (ASTM E399) at four loading-rates were carried out. The experiments were conducted by employing the subsequent apparatus ordered from lowest to highest load application velocity: a servo-hydraulic universal testing machine, a free-drop tower, a modified Split Hopkinson Pressure Bar and an explosive load testing device. In order to perform the dynamic fracture toughness tests, it was necessary to design and develop some experimental devices. The fracture-initiation toughness of the aluminium 7017-T73 alloy did not exhibit a significant variation for the studied cases. As a conclusion, the research showed that fracture-initiation toughness remained constant regardless of the velocity at which the load was applied.
International
Si
Congress
20th European Conference on Fracture
960
Place
Trondheim, Noruega
Reviewers
Si
ISBN/ISSN
2211-8128
10.1016/j.mspro.2014.06.167
Start Date
30/06/2014
End Date
04/07/2014
From page
1026
To page
1031
Procedia Materials Science, Vol 3
Participants
  • Autor: Maria Jesus Perez Martin (UPM)
  • Autor: Borja Erice (Solid Mechanics Laboratory, École Polytechnique, Université Paris-Saclay, France)
  • Autor: Francisco Galvez Diaz-Rubio (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Materiales Estructurales Avanzados y Nanomateriales
  • Centro o Instituto I+D+i: CENTRO INVEST. MATERIALES ESTRUCTURALES (CIME)
  • Departamento: Ciencia de Materiales
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