Feasibility of Evaluating Lumber and Tree Quality by Using Stress Wave and Ultrasonic Wave Method
Song-Yung Wang and Chuang Shih-Tzu
Department of Forestry , National Taiwan University , Taipei , Taiwan
ABSTRACT (PURPOSE) This study was conducted on the standing trees grown in different plantation sites with different spacings with hammer impact and signal recording on the sides along the vertical axis of the stems for collecting the data to use for the assessment and prediction of quality of wood in standing trees. Furthermore, ultrasonic pulse tests were conducted on same specimens and comparison was made between those two different methods of nondestructive tests.
Publication Source: WCTE '98 - 5th World Conference on Timber Engineering, 1998 August 17-20, Montreaux, Switzerland.
Vol. 2, Pages 822.....
Publisher: Presses polytechniques et universitaires romandes - [Homepage]
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