两种木质复合材料弹性模量与阻尼比的动态测量

Dynamic Measures of Elasticity Model and Damp Ratio to HDF and OSB

采用“悬臂梁”自由端方式,测定了硬质纤维板(HDF)、定向刨花板(OSB)试材的动态弹性模量E动和阻尼比ξ,测量了HDF、OSB试材的静态弹性模量,验证了动态测试方法。测定结果表明,动、静态弹性模量情况一致,动态测试方法快速、简便、重复性好。

The thesis adopted the mode of ＂cantalever grider＂ freeness end, mensurated dynamic elasticity model and damp ratio of HDF and OSB test materials. For illuminate correctness of the dynamic testing method, the paper showed static elasticity model results of HDF and OSB test materials. The results showed that its dynamic elasticity model and static elasticity model complexions were consistent. It incarnated the dynamic testing merits on speediness, convenience and good repetition etc.