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http://dx.doi.org/10.5228/KSTP.2018.6.363

Measurement of Mechanical Properties and Constitutive Modeling of Woods  

Kim, K.W. (School of Mechanical Engineering, Pusan National University)
Kim, D.H. (School of Mechanical Engineering, Pusan National University)
Kim, M.S. (School of Mechanical Engineering, Pusan National University)
Ko, Y.J. (LG Electronics)
Ha, B.K. (LG Electronics)
Kim, H.S. (LG Electronics)
Kim, J.H. (School of Mechanical Engineering, Pusan National University)
Publication Information
Transactions of Materials Processing / v.27, no.6, 2018 , pp. 363-369 More about this Journal
Abstract
This study measured the mechanical properties of an ash wood under various temperature and humidity conditions and a finite element model was developed to predict the behavior of the wood. A humidity-controlled chamber was developed and used for measuring the dimensional changes of woods under various humidity conditions. The thermal expansion coefficient and the elastic stiffness constants were measured by using a thermal chamber and the three-point bending test along the three principal axes of the wood. A constitutive model was proposed to describe the moisture content and temperature dependent behavior of wood. The proposed model was validated for the warping test of a wood plate. The warping of the plate was calculated using the finite element method. The calculated amount of warping was in consistence with the measurements.
Keywords
Anisotropy; Elasticity; Hydroscopic Swelling; Warping;
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