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Memorias de investigación
Artículos en revistas:
Time-of-Flight Adjustment Procedure for Acoustic Measurements in Structural Timber
Año:2016
Áreas de investigación
  • Ingenierías,
  • Construccion,
  • Ingeniería de construcción
Datos
Descripción
The effect of timber length on time-of-flight acoustic longitudinal measurements was investigated on the structural timber of four Spanish species: radiata pine (Pinus radiata D. Don), Scots pine (Pinus sylvestris L.), laricio pine (Pinus nigra Arn.), and maritime pine (Pinus pinaster Ait.). Time-of-flight longitudinal measurements were conducted on one hundred and twenty specimens of dimensions 90 × 140 mm using three commercially available acoustic instruments (Sylvatest Duo, USLab, and Microsecond Timer). Time-of-flight data were initially obtained from the full-length (4 m) specimens, and then from the specimens cut to 3, 2, and 1 meter in length by successively cutting off 0.5 m from each end. The acoustic longitudinal velocity of the timber specimens of different lengths was also measured using a resonance-based acoustic method. The apparent acoustic longitudinal velocity for all species increased linearly as the timber length decreased from 4 to 1 meter. Acoustic velocity determined from time-of-flight data was significantly higher than the acoustic velocity determined using the resonance method, indicating systematic measurement errors associated with the time-of-flight instruments. Empirical models were developed for the relationships between time-of-flight measurements on timber specimens and timber lengths in the range of 1 to 4 m. Finally, a procedure was proposed to correct the time-of-flight data.
Internacional
Si
JCR del ISI
Si
Título de la revista
Bioresources
ISSN
1930-2126
Factor de impacto JCR
1,425
Información de impacto
Datos JCR del año 2014
Volumen
DOI
10.15376/biores.11.2.3303-3317
Número de revista
11 (2)
Desde la página
3303
Hasta la página
3317
Mes
MAYO
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Daniel Fernandez Llana (UPM)
  • Autor: Guillermo Iñiguez Gonzalez (UPM)
  • Autor: Francisco Arriaga Martitegui (UPM)
  • Autor: Xiping Wang (U.S. Forest Service, Forest Products Laboratory, Madison, WI, USA)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Construcción con Madera
  • Departamento: Ingeniería y Gestión Forestal y Ambiental
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