[1]韦鹏练,刘晓玲,符韵林*. 火力楠人工林木材物理力学性质的研究[J].西北林学院学报,2020,35(1):252-256.[doi:10.3969/j.issn.1001-7461.2020.01.38]
 WEI Peng-lian,LIU Xiao-ling,FU Yun-lin*. Physical and Mechanical Properties of Michelia macclurei Plantation Wood[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2020,35(1):252-256.[doi:10.3969/j.issn.1001-7461.2020.01.38]
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 火力楠人工林木材物理力学性质的研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第35卷
期数:
2020年第1期
页码:
252-256
栏目:
出版日期:
2020-01-31

文章信息/Info

Title:
 Physical and Mechanical Properties of Michelia macclurei Plantation Wood
文章编号:
1001-7461(2020)01-0252-05
作者:
 韦鹏练1刘晓玲2符韵林1*
 (1.广西大学 林学院,广西 南宁 530004;2.广西壮族自治区林业科学研究院,广西 南宁 530002)
Author(s):
 WEI Peng-lian1LIU Xiao-ling2FU Yun-lin1*
 (1.Forestry College,Guangxi University,Nanning 530004,Guangxi,China; 2.Guangxi Academy of Forestry,Nanning 530002,Guangxi,China)
关键词:
 火力楠人工林木材物理性质力学性质
Keywords:
Michelia macclurei plantation wood wood physical property wood mechanical property
分类号:
S781.29
DOI:
10.3969/j.issn.1001-7461.2020.01.38
文献标志码:
A
摘要:
 为掌握火力楠人工林木材的性质,为其木材利用提供科学指导,对火力楠人工林木材的主要物理力学性能指标进行了测定分析。结果表明,火力楠人工林木材的基本密度、气干密度以及全干密度平均分别为0.531、0.641 g·cm-3和0.596 g·cm-3,弦向、径向和体积气干干缩率平均分别为3.9%、2.7%和6.5%,对应的干缩系数平均分别为0.346%、0.239%和0.576%,差异干缩为1.444,属密度适中、干缩性小的一类木材;木材端面、弦面和径面硬度平均分别为5 989、4 847 N和4 829 N,抗弯强度、弹性模量、顺纹抗压以及冲击韧性平均分别为117.2 MPa(3级),10.61 GPa(3级)、57.8 MPa(3级)和55 kJ·m-2(2级),综合强度达175 MPa,综合品质系数达3 295.7×105 Pa,属高等级材。
Abstract:
 In order to master the properties of Michelia macclurei plantation wood and to provide scientific guidance for its utilization,the main physical mechanical properties of the wood were studied.The results showed that the M.macclurei plantation wood belonged to medium density grade and the oven-dried shrinkage coefficient was in small category.The basic,air dried,and and oven dried densities were 0.531,0.641,and 0.596 g·cm-3,respectively.Tangential,radial and volume shrinkage ratios of air dried sample were 3.9%,2.7%,and 6.5% with shrinkage coefficients of 0.346%,0.239% and 0.576%,respectively,and the difference of oven-dried shrinkage was 1.444.The values of hardness on cross,tangential and radial surfaces were 5 989,4 847,and 4 829 N respectively.The values of bending strength,modulus of elasticity,compression strength parallel to grain and impact toughness were 117.2 MPa (level 3),10.61 GPa (level 3),57.8 MPa (level 3),and 55 KJ/m2 (level 2),respectively.The comprehensive strength was 175 MPa.The comprehensive quality coefficient of the wood was 3 295.7×105 Pa,belonging to high-grade wood.

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备注/Memo

备注/Memo:
 收稿日期:2018-05-19修回日期:2019-08-15
基金项目:国家自然科学基金(31560191)。
作者简介:韦鹏练,男,博士,讲师,研究方向:木材材性与加工利用。E-mail:ztzxwpl@163.com
*通信作者:符韵林,男,博士,教授,研究方向:木材材性及其功能改良。E-mail:fylin@126.com
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