Acoustic emission and acousto-ultrasonic techniques for wood and wood-based composites: a review

Sumire Kawamoto; R. Sam Williams

doi:10.2737/FPL-GTR-134

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Acoustic emission and acousto-ultrasonic techniques for wood and wood-based composites: a review

Informally Refereed

Authors:

Sumire Kawamoto, R. Sam Williams

Year:

2002

Type:

General Technical Report

Station:

Forest Products Laboratory

DOI:

https://doi.org/10.2737/FPL-GTR-134

Source:

Gen. Tech. Rep. FPL-GTR-134. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. 16 p.

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Abstract

This review focuses on the feasibility of acoustic emission (AE) and acousto-ultrasonic (AU) techniques for monitoring defects in wood, particularly during drying. The advantages and disadvantages of AE and AU techniques are described. Particular emphasis is placed on the propagation and attenuation of ultrasonic waves in wood and the associated measurement problems. The review is divided into two sections, acoustic emission techniques and acousto-ultrasonic techniques. It includes historical background on the techniques as well as applications for wood and wood products. Because much research on nondestructive tests for wood has been published only in Japanese, considerable attention is given to those publications.

Keywords

Acoustic emission, acousto-ultrasonic, wood, wood composites, wood drying

Citation

Kawamoto, Sumire; Williams, R. Sam. 2002. Acoustic emission and acousto-ultrasonic techniques for wood and wood-based composites: a review. Gen. Tech. Rep. FPL-GTR-134. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. 16 p.