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Wood elastic characterization from a single sample by resonant ultrasound spectroscopy
1Institut d'Electronique du Sud (IES), Université Montpellier 2, UMR CNRS 5214, CC084 Place Eugène Bataillon, 34095 Montpellier, France. roberto.longo@univ-montp2.fr
Abstract:
The goal of this paper is to propose an experimental method allowing the identification of the complete elastic tensor of anisotropic biological materials such as wood using only one sample. To do so, two complementary methods are used. First, the wood eigen-directions are defined from a sample of spherical shape that is then cut into a cube in a way to perform resonant ultrasound spectroscopy (RUS). The method is successfully applied on a reference beech sample with known orthotropic directions. A comparison of the identified elastic constants with those from the literature and some inferred from ultrasonic transmission measurements is given.
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