细柄阿丁枫木材物理力学性质研究
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摘要
通过对细柄阿丁枫木材的物理及力学性质的测定与分析,结果显示:细柄阿丁枫木材的基本密度为0. 617 g·cm~(-3),气干密度为0. 733 g·cm~(-3),全干密度为0. 737 g·cm~(-3),体积干缩系数为5. 221%,抗弯强度为86. 0 MPa,顺纹抗压强度为54. 6 MPa,顺纹抗拉强度为137. 6 MPa,顺纹抗剪强度为(径向12. 1 MPa和弦向13. 5 MPa),抗劈力(径向46. 7 N·mm~(-1)和弦向56. 4 N·mm~(-1)),冲击韧性189 kJ·m~(-2)。与鹅掌楸、水青冈、伯乐树、黄檀、枫香树、笔罗子6种常见阔叶树种木材力学性质相比,细柄阿丁枫木材的抗弯强度、顺纹抗压强度和顺纹抗剪强度属中等;抗劈力和冲击韧性属上等。
Based on the test and analysis on wood physical and mechanical properties of Altingia gracilipessl,the results showed that wood basic density is 0. 617 g·cm~(-3),the air-dry density is 0. 733 g·cm~(-3),the oven-dry density is 0. 737 g·cm~(-3),the volume shrinkage coefficient is 5. 221%,the bending strength is 86 MPa,the CIS compression strength is 54. 6 MPa,the CIS stripe tensile strength is 137. 6 MPa,the CIS shearing strength is 12. 1 MPa(radial)and 13. 5 MPa(chordwise),the cleavage strength is 46. 6 N·mm~(-1)(radial)and 56. 4 N·mm~(-1)(chordwise),and the impact toughness is 189 kJ·m~(-2). Compared with 6 broad-leaved trees of Liriodendron chinensis(Hemsl.)Sarg,Faguslongipetiolata Seem,Bretschneidera sinensis Hemsl. Dalbergia hupeana Hance,Liquidambar formosana Hance,Meliosma rigida,the bending strength,CIS compression strength and shearing strength of the wood of A.gracilipessl are moderate,the cleavage strength and impact toughness are superior.
Based on the test and analysis on wood physical and mechanical properties of Altingia gracilipessl,the results showed that wood basic density is 0. 617 g·cm~(-3),the air-dry density is 0. 733 g·cm~(-3),the oven-dry density is 0. 737 g·cm~(-3),the volume shrinkage coefficient is 5. 221%,the bending strength is 86 MPa,the CIS compression strength is 54. 6 MPa,the CIS stripe tensile strength is 137. 6 MPa,the CIS shearing strength is 12. 1 MPa(radial)and 13. 5 MPa(chordwise),the cleavage strength is 46. 6 N·mm~(-1)(radial)and 56. 4 N·mm~(-1)(chordwise),and the impact toughness is 189 kJ·m~(-2). Compared with 6 broad-leaved trees of Liriodendron chinensis(Hemsl.)Sarg,Faguslongipetiolata Seem,Bretschneidera sinensis Hemsl. Dalbergia hupeana Hance,Liquidambar formosana Hance,Meliosma rigida,the bending strength,CIS compression strength and shearing strength of the wood of A.gracilipessl are moderate,the cleavage strength and impact toughness are superior.
引文
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[4]木材工业实用大全编写委员会.木材工业实用大全.木材卷[M].北京:中国林业出版,2003.
[5]陈奕良,林鹏,叶朝坤,等.伯乐树木材物理性质的研究[J].浙江林业科技,2010,30(5):20-23.
[6]曹文,俞友明,童再康,等.笔罗子木材物理力学性质的研究[J].浙江林业科技,2015,35(4):77-80.
[7]黄洛华,秦特夫.人工林日本落叶松幼龄材与成熟材化学组成的研究[J].世界林业研究,1995,8(增刊):100-103.
[8]成俊卿.木材学[M].北京:中国林业出版社,1985.
[9]尹思慈.木材学[M].北京:中国林业出版社,1996.
[10]赵明水,张华峰.天目铁木物理力学性质初步分析[J].浙江林业科技,2006,26(1):52-55.
[11]中国林业科学院木材工业研究所.中国主要树种的木材物理力学性质[M].北京:中国林业出版社,1982.
[12]林金国,郑郁善,陈新兴,等.突脉青冈木材物理力学性质的研究[J].福建林学院学报,1999,19(1):47-49.
[13]林金国,郑郁善,张金泮.福建含笑木材物理力学性质的研究[J].西北林学院学报,1999,14(2):33-36.
[14]方夏峰,方柏州.闽南格木木材物理力学性质的研究[J].福建林业科技,2007,34(2):146-148.
[15]钟景兵,李英健.酸枣木材物理力学性质试验[J].广西林业科学,1997,26(1):44-46.
[16]成俊卿,杨家驹,刘鹏.中国木材志[M].北京:中国林业出版社,1992.