Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
The mechanically contaminated layer theory of sand-filled fibreglass-reinforced polyester pipes: An explanation of the initial process for the mechanical and hydrolytical behaviour of massive pipeline failures
Año:2015
Áreas de investigación
  • Ingenierías
Datos
Descripción
This investigation describes the fracture mechanism which explains a significant part of massive failures due to the existence of a sand layer placed near the neutral axis in the core making the composite very sensitive to impacts in fibreglass-reinforced polyester pipes. These failures create interface delamination, and consequently fluid can leak into supporting sand backfill thereby initiating the fracture process that can, at times include resin hydrolysis. In order to assess the delamination magnitude, an analytic method is developed and a squared root law between delamination and energy applied proposed. Vertical blunt ram tests on samples extracted from complete pipes have been carried out to verify this theory, reaching a goodness of fit up to 92%. It is concluded that low-energy impacts, around 90?160?J in 800?1000 diameter PN 16?20 continuous filament winding pipes, can seriously compromise their structural integrity with no external trace.
Internacional
Si
JCR del ISI
Si
Título de la revista
Journal of Composite Materials
ISSN
0021-9983
Factor de impacto JCR
1,257
Información de impacto
Datos JCR del año 2013
Volumen
49
DOI
10.1177/0021998314522672
Número de revista
6
Desde la página
647
Hasta la página
658
Mes
FEBRERO
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Carlos Marco-Ayala
  • Autor: Eduardo Salete Diaz (UPM)
  • Autor: Carlos J Marco (Segura Basin Authority)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Ingeniería Civil: Hidráulica, Energía y Medio Ambiente
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