Observatorio de I+D+i UPM

Memorias de investigación
Ponencias en congresos:
Influence of the moon phase on stress wave velocity and structural timber properties
Año:2015
Áreas de investigación
  • Ingeniería de construcción
Datos
Descripción
Traditional knowledge and some research works indicate that the date of tree felling (moon phase in addition to the season of the year) has an important influence on wood properties. Therefore, it is reasonable to think that variables obtained by nondestructive testing and related physical and mechanical properties could also be affected by this issue. The objective of this research was to analyze this potential effect on stress wave velocity, density and mechanical properties (modulus of elasticity and modulus of rupture), by testing specimens felled at different moon phases. The material studied involved 360 structural timber pieces obtained from 225 trees of Japanese larch (Larix kaempferi (Lamb.) Carr.) from Basque Country provenance. Trees were felled on moon`s waxing and waning phase (in two consecutive synodic lunar cycles), and processed in four sizes (from 70x150 mm to 200x250 mm). Additionally to the analysis of a possible influence of the moon phase on timber properties, linear regression models for estimation of mechanical properties by means of stress wave velocity are presented for this species.
Internacional
Si
Nombre congreso
19th International Nondestructive Testing and Evaluation of Wood Symposium
Tipo de participación
960
Lugar del congreso
Rio de Janeiro, Brasil
Revisores
No
ISBN o ISSN
00-0000-000-0
DOI
Fecha inicio congreso
23/09/2015
Fecha fin congreso
25/09/2015
Desde la página
249
Hasta la página
256
Título de las actas
General Technical Report FPL-GTR-239 ? Proceedings: 19th International Nondestructive Testing and Evaluation of Wood Symposium
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Guillermo Iñiguez Gonzalez (UPM)
  • Autor: María José Barriola (TKNIKA)
  • Autor: Ernst Zürcher (Bern University of Applied Sciences BFH)
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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