Non-Destructive Testing of Wood Defects Based on Ultrasonic Technology

Wen Shu Lin; Jin Zhuo Wu

doi:10.4028/www.scientific.net/AMM.401-403.1124

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 401-403Non-Destructive Testing of Wood Defects Based on...

Non-Destructive Testing of Wood Defects Based on Ultrasonic Technology

Abstract:

The elm wood samples were tested by the technique of ultrasonic, and the testing results were analyzed by using the statistic software of SPSS. The results showed that the moister content of wood, wood crack, the sizes of holes and numbers of holes have significant influence on propagation parameters and dynamic modulus of elasticity. If there are holes or cracks in the propagation path, the propagation time will be longer, and the propagation velocity and wood modulus will decrease accordingly. The studying results of this paper will provide a sound background for the application of ultrasonic technique in detecting the inner defects of wood products and other wooden structures, and also offer important reference for testing the inner defects of old trees and ancient buildings.

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Periodical:

Applied Mechanics and Materials (Volumes 401-403)

Pages:

1124-1128

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.401-403.1124

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Online since:

September 2013

Authors:

Wen Shu Lin, Jin Zhuo Wu

Keywords:

Nondestructive Testing (NDT), Propagation Parameters, Ultrasonic, Wood Defects

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References

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