中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 人工林落羽杉力学性能研究 湖北林业科技 2012 (5) 34-37
Position: Home > Articles > Study on the physical and mechanical properties of Taxodium distichum in Jianghan plain Hubei Forestry Science and Technology 2012 (5) 34-37

人工林落羽杉力学性能研究

作  者：
胡绪森;李军章;代新平;杨丽森;李光荣;文雪峰
单  位：
湖北省荆州市林业科学研究所;湖北省林业科学研究院
关键词：
落羽杉;力学性能;抗弯强度;弹性模量;顺纹抗压强度
摘  要：
对江汉平原人工林落羽杉物理力学性能进行了研究,结果表明:落羽杉的气干密度为0.413 g/cm3,气干密度等级为轻;综合强度为74 MPa,强度等级为Ⅰ级;径向横纹抗压强度略大于弦向横纹抗压强度;端面硬度最高,弦面硬度与径面硬度差别不大。落羽杉南北面近树皮处木材的密度、抗弯强度、弹性模量、顺纹抗压强度均大于近髓心处,南北方向对落羽杉的密度、顺纹抗压强度在5%水平上差异均不显著,而对其抗弯强度、弹性模量在1%水平上差异显著。
译  名：
Study on the physical and mechanical properties of Taxodium distichum in Jianghan plain
作  者：
Hu Xusen(1) Li Junzhang(2) Dai Xinping(1) Yang Lisen(2) Li Guangrong(2) Wen Xuefeng(1)(1.Jingzhou City Forestry Research Institute in Hubei Province Jingzhou 434020;2.Hubei Academy of Forestry Wuhan 430075)
关键词：
Taxodium distichum;mechanical properties;MOR;MOE;compression strength parallel to grain
摘  要：
The physical and mechanical properties of Taxodium distichum in Jianghan plain were studied.The results were as follows.The density of Taxodium distichum was 0.413 g/cm3,and its density grade was low in terms of the wood physic-mechanical classifying criteria.Its integrated MOR(modulus of rupture) was 74MPa,which was very low in terms of the wood physic-mechanical classifying criteria.Its radial compression strength perpendicular to grain of wood was bigger than that of tangential direction,which was strongly related to its structure.The transverse hardness was the highest,while radial hardness was nearly the same with tangential hardness.Outer wood had higher properties than core wood.In addition,Variance analysis of physical and mechanical properties affected by direction was researched.The density and compression strength parallel to grain had no statistically significant difference(at 5% level) between north and south directions,while MOR and MOE had significant difference(at 1% level).

相似文章

导出引用
计量
文章访问数: 9
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46