Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Measuring the Cohesive Law in Mode I Loading of Eucalyptus globulus
Year:2018
Research Areas
  • Civil engineering and architecture
Information
Abstract
Assessing wood fracture behavior is essential in the design of structural timber elements and connections. This is particularly the case for connections with the possibility of brittle splitting failure. The numerical cohesive zone models that are used to simulate the fracture behavior of wood make it necessary to assume a cohesive law of the material that relates cohesive tractions and crack opening displacements ahead of the crack tip. This work addresses the determination of the fracture cohesive laws of Eucalyptus globulus, a hardwood species with great potential in timber engineering. This study centres on Mode I fracture loading for RL and TL crack propagation systems using Double Cantilever Beam tests. The Compliance-Based Beam Method is applied as the data reduction scheme in order to obtain the strain energy release rate from the load-displacement curves. The cohesive laws are determined by differentiating the relationship between strain energy release rate and crack tip opening displacement. The latter is measured by the digital image correlation technique. High strain energy release rates were obtained for this species, with no big differences between crack propagation systems. The difference between the crack systems is somewhat more pronounced in terms of maximum stress that determines the respective cohesive laws.
International
Si
JCR
Si
Title
Materials
ISBN
1996-1944
Impact factor JCR
2,972
Impact info
JCR Q2 (mitad superior)
Volume
12
10.3390/ma12010023
Journal number
23
From page
1
To page
14
Month
SIN MES
Ranking
Participants
  • Autor: Maria Almudena Majano Majano (UPM)
  • Autor: Antonio Jose Lara Bocanegra (UPM)
  • Autor: José Xavier (New University of Lisbon)
  • Autor: José Morais (University of Trás-os-Montes e Alto Douro)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Estructuras y Física de Edificación
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
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