白梧桐木材纵向抗弯弹性模量的预测模型

詹天翼; 岳磊; 孙玲; 卢晓宁

doi:10.3969/j.issn.1000-2006.2014.03.021

白梧桐木材纵向抗弯弹性模量的预测模型

詹天翼,岳磊,孙玲,卢晓宁

南京林业大学学报（自然科学版） ›› 2014, Vol. 38 ›› Issue (03) : 109-114.

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南京林业大学学报（自然科学版） ›› 2014, Vol. 38 ›› Issue (03) : 109-114. DOI: 10.3969/j.issn.1000-2006.2014.03.021

研究论文

白梧桐木材纵向抗弯弹性模量的预测模型

詹天翼^1,2,岳磊²,孙玲²,卢晓宁^2*

作者信息 +

Modeling the modulus of elasticity of Triplochiton scleroxylon

ZHAN Tianyi^1,2, YUE Lei², SUN Ling², LU Xiaoning^2*

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文章历史 +

摘要

在对白梧桐木材的结构进行简单化、均匀化假设基础上,根据复合材料力学及经典层合板理论,建立了白梧桐木材纵向抗弯弹性模量(MOE)的预测模型,并进行了验证。试验结果表明,针对白梧桐木材所拟定的两种细胞单元截面尺寸都可以表征其细胞单元和胞壁率。另外,依据复合材料力学建立的预测模型,获得的理论MOE精度较高; 以拟定两种截面尺寸的细胞单元所获得的理论MOE与实际MOE相对误差不超过10%。

Abstract

A prediction model by mechanics of composite material and classical laminated plate theory with its mechanical property was found and validated based on the hypothesis of simplification and uniformization of the wood structure of Triplochiton scleroxylon. Modulus of elasticity(MOE)was varified and it showed that two dimension proposals of element cell could totally representation element cell of T.scleroxylon and its cell wall percentage. The model based on mechanics of composites was precise enough to aim at theoretical MOE,and its relative error was less than 10% with both two dimension proposals compared with realistic MOE. It was feasible to simplify T.scleroxylon structure by laminated plates. In this theory, laminated plate structure could be used in other hardwood species.

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詹天翼,岳磊,孙玲,卢晓宁. 白梧桐木材纵向抗弯弹性模量的预测模型[J]. 南京林业大学学报（自然科学版）. 2014, 38(03): 109-114 https://doi.org/10.3969/j.issn.1000-2006.2014.03.021

ZHAN Tianyi, YUE Lei, SUN Ling, LU Xiaoning. Modeling the modulus of elasticity of Triplochiton scleroxylon[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2014, 38(03): 109-114 https://doi.org/10.3969/j.issn.1000-2006.2014.03.021

中图分类号： S781.81

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基金

收稿日期:2013-05-15 修回日期:2013-11-03
基金项目:国家林业公益性行业科研专项项目(201104042); 贵州省科技计划项目[GY(2010)3025]; 江苏高校优势学科建设工程资助项目(PAPD)
第一作者:詹天翼,博士生。*通信作者:卢晓宁,教授。E-mail:luxiaoning@njfu.edu.cn。
引文格式:詹天翼,岳磊,孙玲,等. 白梧桐木材纵向抗弯弹性模量的预测模型[J]. 南京林业大学学报:自然科学版,2014,38(3):109-114.