Acoustics of Wood by Voichita Bucur PDF

By Voichita Bucur

ISBN-10: 3540261230

ISBN-13: 9783540261230

ISBN-10: 3540305947

ISBN-13: 9783540305941

From the reports of the first edition:

"It would certainly stay the main accomplished paintings during this box for a very long time to come back. It belongs at the bookshelf of each fabric scientist and structural engineer."

CAS magazine, USA

"...[T]he writer has performed an admirable activity, amassing, organizing, and reviewing the disparate literature on so much points of the Acoustics of Wood."

Journal of the Acoustical Society of the US, USA

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For solids of different symmetries such as isotropic, transverse isotropic, or orthotropic, the stiffness matrix can be turned into a compliance matrix, following a specific procedure (Bodig and Jayne 1982). , orientation of the fibers. 1 Elastic Symmetry of Propagation Media Because this chapter aims to provide the theoretical basis needed to understand wave propagation phenomena in solids, it was decided to analyze, first, the elastic symmetry of media of various complexity. For solid wood and for wood-based composites, orthotropic and transverse isotropic symmetries are most frequently observed.

5-mm plasterboard. 3 Wood and the Acoustics of Concert Halls There are many cases of the improvement of room acoustics when wood material is used. Moreover, it has been recognized that the acoustical quality of rooms is a matter of subjective judgement. Even today, the design and construction of a concert hall can be defined as «an art» in the classical meaning of the word, despite the fact that scientific knowledge in this field is advanced (Muller 1986). The sound field in a real room is very complicated and it is not open to exact mathematical treatment.

4 Theory of and Experimental Methods for the Acoustic Characterization of Wood This chapter highlights the potential uses of vibrational methods in ultrasonic and audible frequency range for the characterization of mechanical behavior of solids in general and of wood-based composites in particular. The analysis of mechanical wave propagation in media of various complexities enables us to focus our attention on the theoretical basis of the techniques used for the measurement of elastic properties such as elastic moduli, Poisson’s ratios, tensile or shear yield strengths, etc.

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Acoustics of Wood by Voichita Bucur

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