[1]梁宏温,黄寿先,覃亚丽,等.23年生大叶栎木材物理力学性质的初步研究[J].西北林学院学报,2007,22(01):115-118.
　LIANG Hongwen,HUANG Shouxian,QIN Yali,et al.Preliminary Researches of the Wood Physicalmechanical Properties of 23yearold Castanopsis fissa[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2007,22(01):115-118.
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23年生大叶栎木材物理力学性质的初步研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第22卷
期数:
2007年01期
页码:
115-118
栏目:
森林资源管理与经管
出版日期:
2007-01-30

文章信息/Info

Title:
Preliminary Researches of the Wood Physicalmechanical Properties of 23yearold Castanopsis fissa
作者:
梁宏温1 ; 黄寿先1 ; 覃亚丽1 ; 覃丽萍1 ; 黄明荣2; 陈仕静2; 唐凤生2
1. 广西大学 林学院，广西 南宁 530005；2. 广西平果县海明林场，广西 平果 533001
Author(s):
LIANG Hongwen1;  HUANG Shouxian1;  QIN Yali1;  QIN Liping1 HUANG Mingrong2; CHEN Shijing2; TANG Fengsheng2
1.College of Forestry, Guangxi University, Nanning, Guangxi 530005, China; 2.Haiming Forest Farm, Pingguo, Guangxi 533001,China
关键词:
大叶栎; 木材物理性质; 木材力学性质
Keywords:
Castanopsis fissa; physical properties of wood;  mechanical properties of wood
分类号:
S792.17；S781.29
文献标志码:
A
摘要:
对广西平果县海明林场23年生大叶栎木材的主要物理力学性质进行了测定和分析。结果表明大叶栎木材的气干密度（含水率为12％）、基本密度和全干密度分别为0.583 g·cm-3、0.462 g·cm-3和0.507 g·cm-3，气干密度属于国产木材的中等级水平；径向、弦向和体积干缩系数分别为0.099%、0.183%、0.296%，湿胀率依次为4.106%、7.958%和12.627%，差异干缩为1.5-1.9，其尺寸稳定性较好；冲击韧性为52.12 kJ·m-2，端面、径面和弦面硬度分别为41.53 MPa、31.41 MPa和35.51 MPa，顺纹抗压强度为44.50 MPa，抗弯弹性模量和抗弯强度分别为12.63 GPa和127.31 MPa，径面和弦面顺纹抗剪强度分别为8.76 MPa和10.54 MPa，抗劈强度依次为124.3 N·mm-1和138.6 N·mm-1。除冲击韧性和硬度较低外，大叶栎木材的主要力学强度均属于国产木材的中等级水平。
Abstract:
The wood physicalmechanical properties were studied for 23yearold Castanopsis fissa grown on Haiming forest farm of Pingguo, Guangxi. The results were as follows the airdried density ( moisture content of wood is 12%), the basic density and the ovendry density were 0.583 g·cm-3, 0.462 g·cm-3 and 0.507 g·cm-3 respectively, the airdried density was at the medium level in domestic wood species；the shrinkage coefficient of radial, tangential and volumetric were 0.099%, 0.183% and 0.296% respectively, the maximum swelling were 4.106%, 7.958% and 12.627% respectively；the ratio of tangential shrinkages to radial shrinkages was 1.5-1.9；the toughness was 52.12 kJ·m-2；the hardness of cross, radial and tangential section were 41.53 MPa, 31.41 MPa and 35.51 MPa respectively；the compressive strength parallel to grain was 44.50 MPa ；the modulus of elasticity in static bending and the bending strength were 12.63GPa and 127.31 MPa respectively；the shearing strength parallel to grain of radial and tangential were 8.76 MPa and 10.54 MPa respectively；the cleavage strength to grain of radial and tangential were 124.3 N·mm-1 and 138.6 N·mm-1 respectively. Except toughness and hardness, the main mechanical intensity of Castanopsis fissa was at the medium level in domestic wood species.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期20060313修回日期20060601基金项目广西“十五”林业科技项目“大叶栎遗传改良及优化栽培技术研究”（林科字2002［18］）作者简介梁宏温（1959），男，广西贵港人，副研究员，研究方向为木材学、森林生态学。
更新日期/Last Update: 2010-05-04