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http://dx.doi.org/10.5658/WOOD.2015.43.1.36

Determination of True Modulus of Elasticity and Modulus of Rigidity for Domestic Woods with Different Slenderness Ratios Using Nondestructive Tests  

Cha, Jae Kyung (Department of Forest Products and Life Science, College of Forest science, Kookmin University)
Publication Information
Journal of the Korean Wood Science and Technology / v.43, no.1, 2015 , pp. 36-42 More about this Journal
Abstract
This study examined true modulus of elasticity (MOE) and modulus of rigidity (G) for domestic woods with different slenderness ratios (L/D) using the static bending and stress wave tests. Bending properties of small clear wood specimen of three domestic wood species were determined at 12% moisture content. The results of this study indicated that both MOR and MOE of domestic woods were affected by the slenderness ratio. As the slenderness ratio increased, MOR and MOE increased. G and true MOE of domestic timber beams were obtained at different slenderness ratios by flexure test and stress wave test. The values reported here can be useful if these species woods are used for structural purposes. However, the reported values are only indicative and do not represent the true average of wood species due to the limited number of specimens tested.
Keywords
true modulus of elasticity; modulus of rigidity; modulus of rupture; slenderness ratio;
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