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Constitutive Equation of Laminated Veneer Lumber (LVL) at Large Deformation Condition
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作者 Li Ning Sun Yanling +1 位作者 Wang Shujuan Lu Zhenyou 《Forestry Studies in China》 CAS 2003年第3期39-41,共3页
The stress-strain relation of laminated veneer lumber (LVL) was established by the method of regression, and its constitutive equation at large deformation and constant loading conditions was given to predict the stat... The stress-strain relation of laminated veneer lumber (LVL) was established by the method of regression, and its constitutive equation at large deformation and constant loading conditions was given to predict the static mechanical behaviors of LVL. 展开更多
关键词 laminated veneer lumber (LVL) constitutive equation large deformation
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Determination of coefficients of friction for laminated veneer lumber on steel under high pressure loads 被引量:3
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作者 Michael DORN Karolína HABROVÁ +1 位作者 Radek KOUBEK Erik SERRANO 《Friction》 SCIE EI CAS CSCD 2021年第2期367-379,共13页
In this study,static coefficients of friction for laminated veneer lumber on steel surfaces were determined experimentally.The focus was on the frictional behaviors at different pressure levels,which were studied in c... In this study,static coefficients of friction for laminated veneer lumber on steel surfaces were determined experimentally.The focus was on the frictional behaviors at different pressure levels,which were studied in combination with other influencing parameters:fiber orientation,moisture content,and surface roughness.Coefficients of friction were obtained as 0.10–0.30 for a smooth steel surface and as high as 0.80 for a rough steel surface.Pressure influenced the measured coefficients of friction,and lower normal pressures yielded higher coefficients.The influence of fiber angle was observed to be moderate,although clearly detectable,thereby resulting in a higher coefficient of friction when sliding perpendicular rather than parallel to the grain.Moist specimens contained higher coefficients of friction than oven-dry specimens.The results provide realistic values for practical applications,particularly for use as input parameters of numerical simulations where the role of friction is often wrongfully considered. 展开更多
关键词 laminated veneer lumber(LVL) WOOD static friction high pressure angle-to-grain moisture content
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