我们的网站为什么显示成这样?

可能因为您的浏览器不支持样式,您可以更新您的浏览器到最新版本,以获取对此功能的支持,访问下面的网站,获取关于浏览器的信息:

|Table of Contents|

水热-微波处理水曲柳顺纹压缩应力-应变本构关系(PDF)

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

Issue:
2013年04期
Page:
105-109
Column:
研究论文
publishdate:
2013-07-15

Article Info:/Info

Title:
Stress-strain constitutive relation of longitudinal compressed Fraxinus mandshurica Rupr. with hydrothermal-microwave treatment
Article ID:
1000-2006(2013)04-0105-05
Author(s):
ZHANG Yan TONG Da SONG Kuiyan*
Key Laboratory of Bio-based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin 150040, China
Keywords:
Fraxinus mandshurica Rupr. longitudinal compression juvenile wood mature wood stress-strain relation
Classification number :
S781.7
DOI:
10.3969/j.issn.1000-2006.2013.04.020
Document Code:
A
Abstract:
Stress-strain relationship of longitudinal compressed hydrothermal-microwave treated juvenile and mature northeast China ash wood and their chemical composition variation were analyzed. The stress-strain constitutive relation of longitudinal compressed wood were established. Results showed that at the beginning of compression, the curves followed the linear Hooke’s Law. Meanwhile, the curves primarily fit the linear mechanics relation at the elastic-plastic region. The founded stress-strain constitutive relation showed that both juvenile and mature wood longitudinal compression could be expressed by an equation consisting of a constant term(proportional ultimate stress)and stress-strain linear relationship. The higher modulus of elasticity(MOE)and stress of juvenile wood was caused mainly by the difference of wood components between juvenile and mature ash wood at the same longitudinal compression rate.

References

[1] 李坚. 木材科学 [M]. 哈尔滨:东北林业大学出版社,1994.
[2] 宋魁彦. 家具设计制造学 [M]. 哈尔滨:黑龙江人民出版社,2006. Song K Y. Furniture Design and Manufacture [M]. Harbin:Heilongjiang People’s Press, 2006.
[3] 陆文达. 木材改性工艺学 [M]. 哈尔滨:东北林业大学出版社,1993.
[4] Horvath B, Peralta P, Frazier C,et al. Thermal softening of transgenic Aspen [J]. BioResources, 2011, 6(2):2125-2134.
[5] Carole A, Vincent P, Brigitte C, et al. Concomitant changes in viscoelastic properties and amorphous polymers during the hydrothermal treatment of hardwood and softwood [J]. Journal of Agriculture Food Chemistry, 2009, 57(15):6830-6837.
[6] Funaoka M,Kako T, Abe I. Condensation of lignin during heating of wood [J]. Wood Science and Technology, 1990, 24(3):277-288.
[7] Tjeerdsma B F, Militz H. Chemical changes in hydrothermal treated wood:FTIR analysis of combined hydrothermal and dry heat-treated wood [J]. Holz als Roh-und Werkstoff, 2005, 63(2):102-111.
[8] 李大纲,李坚,刘一星. 热处理对消除水曲柳木材弯曲变形的影响 [J]. 南京林业大学学报:自然科学版, 2004, 28(3):23-26. Li D G, Li J, Liu Y X. Effects of heat treatment on permanent fixation bending deformation in wood of Fraxinus mandshurica [J]. Journal of Nanjing Forestry University:Natural Sciences Edition, 2004,28(3):23-26.
[9] 苗平,张文静. 汽蒸处理对木材横向渗透性的影响 [J]. 南京林业大学学报:自然科学版, 2009, 33(2):99-102. Miao P, Zhang W J. Effect of steaming treatment on transverse permeability of wood [J]. Journal of Nanjing Forestry University:Natural Sciences Edition, 2009, 33(2):99-102.
[10] 周利,卢晓宁,丁慧. 水热处理对杨木顺纹压缩性质的影响 [J]. 南京林业大学学报:自然科学版, 2008, 32(1):61-64. Zhou L, Lu X N, Ding H. Effect of hydrothermal treatment on longitudinal compression properties of poplar [J]. Journal of Nanjing Forestry University:Natural Sciences Edition, 2008, 32(1):61-64.
[11] Uhmeier A,Morooka T, Norimoto M. Influence of thermal softening and degradation on the radial compression behavior of wet spruce [J]. Holzforschung, 1998, 52(1):77-81.
[12] Rajeev G J, Graduate R J, Perry N P, et al. Nonisothermal radio frequency drying of red oak [J]. Wood Fiber Science, 2001, 33(3):476-485.
[13] Beat S, Barbara O, Graeme S. Temperature and moisture content behaviour in microwave heated wood prior to bending Mountain Ash(Eucalyptus regnans)[J]. European Journal of Wood and Wood Products, 2009, 67(2):237-239.
[14] Hofstetter K, Hellmich C, Eberhardsteiner J. Development and experimental validation of a continuum micromechanics model for the elasticity of wood[J]. European Journal of Mechanics-A/Solids, 2005, 24(6):1030-1053.
[15] 李青.国产榆木压缩木的研制[J].木材工业,2000,14(4):38-39. Li Q. Development of compressed wood from domestic elm [J]. China Wood Industry, 2000, 14(4):38-39.
[16] 宋魁彦,王逢瑚,宋宇宏. 榆木顺纹压缩弯曲技术 [J]. 林业科学,2004, 40(2):126-130. Song K Y, Wang F H, Song Y H. The techniques of elm longitudinal compressing and bending [J]. Scientia Silvae Sinicae, 2004, 40(2):126-130.
[17] 宋魁彦,李坚. 水热-微波处理对榆木软化和顺纹压缩及弯曲的影响 [J]. 林业科学, 2009, 45(10):120-125. Song K Y, Li J. Effect of hydrothermal-microwave treatment on softening and longitudinal compressing and bending elm wood [J]. Scientia Silvae Sinicae, 2009, 45(10):120-125.
[18] 全国造纸工业标准化技术委员会.GB/T 2677.8—1994造纸原料酸不溶木素含量的测定[S].北京:中国标准出版社,1994.
[19] 全国造纸工业标准化技术委员会.GB/T 2677.10—1995造纸原料综纤维素含量的测定[S].北京:中国标准出版社,1996.
[20] 轻工业部造纸工业科学研究所.GB/T 2677.4—1993造纸原料水抽出物含量的测定[S].北京:中国标准出版社,1993.
[21] Tan L F, Zhu D W, Zhou W B, et al. Preferring cellulose of Eichhornia crassipes to prepare xanthogenate to other plant materials and its adsorption properties on copper [J] Bioresource Technology, 2008, 99(10):4460-4466.
[22] 张士成,齐华春,刘一星,等.高温过热蒸汽处理对木材结晶性能的影响[J].南京林业大学学报:自然科学版,2010,34(5):164-166. Zhang S C, Qi H C, Liu Y X, et al. Impact on timber crystallization performance of superheated steam-treated wood under high temperature and pressure [J]. Journal of Nanjing Forestry University:Natural Sciences Edition, 2010, 34(5):164-166.
[23] 佟达,宋魁彦,李坚. 水热-微波软化处理对水曲柳弯曲的影响 [J]. 林业科学, 2011, 47(11):129-132. Tong D, Song K Y, Li J. Effect of hydrothermal-microwave softened treatment on bending ash wood [J]. Scientia Silvae Sinicae, 2011, 47(11):129-132.
[24] 周永东,傅峰,李贤军,等. 微波处理对桉木应力及微观构造的影响 [J]. 北京林业大学学报, 2009, 31(2):146-150. Zhou Y D, Fu F, Li X J,et al. Effects of microwave treatment on residue growth stress and microstructure of Eucalyptus urophylla [J]. Journal of Beijing Forestry University, 2009, 31(2):146-150.

Last Update: 2013-07-30