Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Vibration method for grading of large cross section timber of Spanish coniferous species
Year:2012
Research Areas
  • Construction of engineering
Information
Abstract
The non-destructive testing (NDT) of timber using the longitudinal vibration method is based on the natural frequency of wood which is in relation to its quality. In the present paper, the suitability of this tool is investigated and the results of grading 395 pieces are presented. Structural timber of Radiata pine ( Pinus radiata D. Don.), Scots pine ( Pinus sylvestris L.), and Laricio pine [ Pinus nigra ssp. salzmannii (Dunal) Franco] from Spanish sources were investigated. The specimens were tested for bending according to the European standard EN 408 (2003) and the values of strength and stiffness were compared with the results estimated by means of NDT. The vibration equipment applied permits the measurement of the longitudinal natural frequency and mass of the specimen, and then the density and the dynamic modulus of elasticity can be calculated. There is a strong relationship between the static modulus of elasticity obtained from the bending test and the dynamic modulus of elasticity obtained by the NDT technique. There is an acceptable relationship between modulus of rupture and dynamic modulus of elasticity if the visual defects (knot sizes) are taken into account. Acoustic measurements have become widely acceptable, and they have great potential for stress grading of coniferous timber
International
Si
JCR
Si
Title
Holzforschung
ISBN
0018-3830
Impact factor JCR
1,748
Impact info
Volume
66
10.1515/HF.2011.167
Journal number
From page
381
To page
387
Month
SIN MES
Ranking
Categoría: Materials Science, Paper and Wodd. Posición 3 de 23 en 2010
Participants
  • Autor: Francisco Arriaga Martitegui (UPM)
  • Autor: Guillermo Iñiguez Gonzalez (UPM)
  • Autor: Miguel Esteban Herrero (UPM)
  • Autor: Ferenc Divos (Universidad de Sopron)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Construcción con Madera
  • Departamento: Construcción y Vías Rurales
S2i 2019 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)