Institut d'Electronique du Sud (IES), Université Montpellier 2, UMR CNRS 5214, CC084 Place Eugène Bataillon, 34095 Montpellier, France.
Ultrasonics. 2012 Dec;52(8):971-4. doi: 10.1016/j.ultras.2012.08.006. Epub 2012 Aug 10.
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.
本文旨在提出一种实验方法，仅使用一个样本即可识别各向异性生物材料（如木材）的完整弹性张量。为此，使用了两种互补的方法。首先，从球形样本定义木材的本征方向，然后将其切割成立方体，以进行共振超声光谱（RUS）测量。该方法成功应用于具有已知各向异性方向的参考山毛榉样本。给出了与文献中以及从超声波传输测量推断的弹性常数的比较。
