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http://dx.doi.org/10.5658/WOOD.2014.42.3.275

Evaluation of Modulus of Elasticity of Wood Exposed to Accelerated Weathering Test by Measuring Ultrasonic Transmission Time  

Park, Chun-Young (Department of Housing Environmental design, Chonbuk National University)
Kim, Gwang-Chul (Department of Housing Environmental design, Chonbuk National University)
Publication Information
Journal of the Korean Wood Science and Technology / v.42, no.3, 2014 , pp. 275-281 More about this Journal
Abstract
In this study, accelerated weathering test was performed with wood, a major material for wooden cultural building. In order to evaluate the deterioration of wood, ultrasonic transmission times were measured to evaluate dynamic modulus of elasticity (MOE), which was verified by determining static MOE using three-point bending test. Ultrasonic transmission time was decreased with an increase in the weathering time levels (0, 500, 1000 hours) while it increased in 1500 and 2000 hours. Distribution of dynamic and static MOE was similar to that of the ultrasonic transmission time measurements. The results mean that the measurement of ultrasonic transmission time was very effective to evaluate MOE of wooden cultural buildings for their preservation and management. This method could be utilized to assess wooden cultural buildings as a way of preserving them in a scientific manner.
Keywords
Accelerated weathering test; Ultrasonic transmission time; Dynamic modulus of elasticity; static modulus of elasticity;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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