乐东拟单性木兰木材物理力学性质的研究

Study on timber physical and mechanical properties of Parakmeria lotungensis wood

对福建省南平市延平区23年生以上的乐东拟单性木兰木材的物理力学性质进行测定和分析。结果表明:乐东拟单性木兰木材密度、干缩性、综合强度均属中等水平,其基本密度和气干密度分别为0.579和0.708 g.cm-3,体积干缩系数为0.516,抗弯强度为134.8 MPa,顺纹抗压强度为61.94 MPa,综合强度为196.74 MPa。

Physical and mechanical properties of Parakmeria lotungensis wood in Yanping District,Nanping City,Northern Fujian Province,China were determined and analyzed.The results showed that density,shrinkage and comprehensive strength of P.lotungensis wood all belonged to middle level.Its basic density was 0.579 g·cm-3,its air dried density was 0.708 g·cm-3,its shrinkage coeffcient of the volume was 0.516,its bending strength was 134.8 MPa,its compressive strength parallel to grain was 61.94 MPa and its composite strength was 196.74 MPa.