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木材冲击韧性含水率修正模型的研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2009年03期
Page:
92-94
Column:
研究论文
publishdate:
2009-05-30

Article Info:/Info

Title:
Study on revision model of the wood toughness with moisture content
Author(s):
WANG Youhong1 JIANG Zehui2FEI Benhua3 WANG Chuangui1 Liu Xing’e2 XU Bin1 KE Shuhua1 WANG Yunfei1
1.School of Forestry and Landscape Architecture, Anhui Agricultural University, Hefei 230036, China; 2.International Centre for Bamboo and Rattan, Beijing 100102, China; 3.Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091,China
Keywords:
wood moisture content toughness revision model Cunninghamia lanceolata Castanea seguinii
Classification number :
S781
DOI:
10.3969/j.jssn.1000-2006.2009.03.021
Document Code:
A
Abstract:
The wood with the moisture content of 9%,10%,11%,12%,13%,14% and 15% were used to measure the tangential direction toughness, and wood with 12% moisture content was also used to measure the radial direction toughness. After the survey, the revision model of toughness with moisture content were established. The toughness of radial and tangential direction of Cunninghamia lanceolata were 46.112 kJ/m2 and 37.514 kJ/m2 respectively. The toughness of radial and tangential direction of Castanea seguinii were 82.994 kJ/m2 and 76.271 kJ/m2 respectively. The differences of toughness value between the radial and tangential direction were remarkable at 0.05 level for both C.seguinii and C.lanceolata. So the “Method of testing in toughness of wood” should include the revision model of toughness with moisture content A12=AW[1+0.02(W-12)] and the method how to measure the radial toughness of wood.

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Last Update: 2009-05-30