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Ponencias en congresos:
Measurement of fracture energy of concrete at high strain rates
Año:2018
Áreas de investigación
  • Ingenierías
Datos
Descripción
The Hopkinson Bar has been widely used by many researchers for the analysis of dynamic properties of different brittle materials and, due to its great interest, for the study of concrete. In concrete structures subjected to high velocity impacts, initial compression pulses travel through the material leading to tensile stresses when they reach a free surface. These tensile efforts are the main cause of concrete fracture due to its low tensile strength compared to the compressive one. This is the reason why dynamic tests in concrete are becoming of great interest and are mostly focused in obtaining tensile fracture properties. Apart from the dynamic tensile strength, which has been widely studied by many authors in the last decades, the dynamic fracture energy presents an increased difficulty and so not too much experimental information can be found in literature. Moreover up to date there is not a clear methodology proposed in order to obtain this parameter in an accurate way. In this work a new methodology for measuring the dynamic fracture energy is proposed by using the Hopkinson Bar technique. Initial tests for a conventional concrete have been carried out. Results for the dynamic fracture energy of concrete at different strain rates are presented.
Internacional
Si
Nombre congreso
12th International DYMAT Conference
Tipo de participación
960
Lugar del congreso
Arcachón (Francia)
Revisores
Si
ISBN o ISSN
DOI
Fecha inicio congreso
09/07/2018
Fecha fin congreso
14/07/2018
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Título de las actas
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Victor Rey de Pedraza Ruiz (UPM)
  • Autor: Francisco Rafael Galvez Diaz-Rubio (UPM)
  • Autor: David Angel Cendon Franco (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Ciencia de Materiales
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