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Title: Potential of ultrasonic pulse velocity for evaluating the dimensional stability of oak and chestnut wood

Source: Ultrasonics

Author(s)Dundar, Turker; Wang, Xiping; As, Nusret; Avci, Erkan

Publication Year: 2016  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4714-1B

Abstract: The objective of this study was to examine the potential of ultrasonic velocity as a rapid and nondestructive method to predict the dimensional stability of oak (Quercus petraea (Mattuschka) Lieblein) and chestnut (Castanea sativa Mill.) that are commonly used in flooring industry. Ultrasonic velocity, specific gravity, and radial, tangential and volumetric shrinkages were measured on seventy-four 20  20  30-mm3 specimens obtained from freshly cut oak and chestnut stems. The ultrasonic velocities of the specimens decreased with increasing moisture content (MC). We found that specific gravity was not a good predictor of the transverse shrinkages as indicated by relatively weak correlations. Ultrasonic velocity, on the other hand, was found to be a significant predictor of the transverse shrinkages for both oak and chestnut. The best results for prediction of shrinkages of oak and chestnut were obtained when the ultrasonic velocity and specific gravity were used together. The multiple regression models we developed in this study explained 77% of volumetric shrinkages in oak and 72% of volumetric shrinkages in chestnut. It is concluded that ultrasonic velocity coupled with specific gravity can be employed as predicting parameters to evaluate the dimensional stability of oak and chestnut wood during manufacturing process.

Keywords: Ultrasonic velocity; Dimensional stability; Shrinkage; Specific gravity; Wood

Publication Review Process: Formally Refereed

File size: 345 kb(s)

Date posted: 05/24/2016

This publication is also viewable on Treesearch:  view
RITS Product ID: 79250
Current FPL Scientist associated with this product
Wang, Xiping
Research Forest Products Technologist
  

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