Vibrations de poutre - Caractérisation acoustique du matériau bois pour son utilisation en structure

24/03/2011 - Article

A book analysing the range of non-destructive methods that serve to improve classification of wooden joists for use in construction.

To improve classification of wooden joists for use in construction, it is necessary to estimate the longitudinal elasticity modulus and breaking strength of square-edged timbers in a non-destructive, reliable way .

The first chapter describes the conventional joist vibration models and explains the limitations of their validity. The second sets out a new theoretical approach that takes account of and characterizes the presence of defects within the joists being vibrated. The third explains how, by viscoelastic modelling of dynamic performance, it is possible to characterize the various transformations the waves spreading through the material undergo. The fourth and last chapter assesses the efficacy of the range of non-destructive methods set out in the previous chapters, based on experimental trials on several batches of construction timber.

Vibrations de poutre
Caractérisation acoustique du matériau bois pour son utilisation en structure
Loïc Brancheriau
Editions universitaires européennes
2011