Mechanical damping of wood as related to species classification: a preliminary survey

Iris Brémaud (1) , Kazuya Minato (2) , Bernard Thibaut (3)

1 MAB - Mécanique de l'Arbre et du Bois
2 Laboratory of Forest Resources Circulatory System
3 ECOFOG - Ecologie des forêts de Guyane

Some morphological and biochemical taxonomic markers are also affecting factors of dynamic mechanical properties of wood. Thus, could these properties reflect the classification/phylogeny of taxa? This work is a first insight into this question. It relied on the gathering (through experimental campaigns and exhaustive literature review) of a large database on the viscoelastic (i.e. including damping) vibrational properties of 445 woody species. relationship between damping was confirmed at a wide interspecific scale, but described no more than 40% of not in a way that could be easily related to the phylogenetic tree. Damping was a bit more -Papilionoideae and, to a lesser extent, Lauraceae, Cupressaceae and Moraceae) damping than average, independently While for some other families no clear characteristics could be observed at least with the present number of represented species. In the future, increasing the amount of data and compiling anatomical and chemical markers / affecting factors will allow further analysis at sub-family levels, and a better understanding of this wide topic.

Domaines: Matériaux

Iris Brémaud, Kazuya Minato, Bernard Thibaut. Mechanical damping of wood as related to species classification: a preliminary survey. 6th Plant Biomechanics Conference PBM09, Nov 2009, Cayenne, French Guiana. pp.536-542. ⟨hal-00808398⟩