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Descripción
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| 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. | |
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Internacional
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Si |
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Nombre congreso
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19th International Nondestructive Testing and Evaluation of Wood Symposium |
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Tipo de participación
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960 |
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Lugar del congreso
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Rio de Janeiro, Brasil |
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Revisores
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No |
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ISBN o ISSN
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00-0000-000-0 |
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DOI
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Fecha inicio congreso
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23/09/2015 |
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Fecha fin congreso
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25/09/2015 |
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Desde la página
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249 |
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Hasta la página
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256 |
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Título de las actas
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General Technical Report FPL-GTR-239 ? Proceedings: 19th International Nondestructive Testing and Evaluation of Wood Symposium |