| 竹材的力学性能及磨料磨损性能研究 |
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| 引用本文： | 孙俊杰,王智芹,王宝刚,叶伟,邓志华,马云海.竹材的力学性能及磨料磨损性能研究[J].农机化研究,2011,33(7). |
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| 作者姓名： | 孙俊杰 王智芹 王宝刚 叶伟 邓志华 马云海 |
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| 作者单位： | 吉林大学(南岭校区)地面机械仿生技术教育部重点实验室,长春,130022 |
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| 基金项目： | 国家自然科学基金项目(51075177); 留学回国人员科研启动基金项目(2007); 吉林省科技厅发展计划项目(20070518,20091013) |
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| 摘 要： | 对天然竹材的力学性能以及磨料磨损性能进行了研究。竹材的拉伸强度、弹性模量、断裂延伸率和冲击韧性均在一定的范围内随纤维含量的增加而提高,顺纹拉伸强度比横纹抗拉强度大2 9倍以上,弹性模量为横纹的1.2倍以上,断裂延伸率为横纹的1 3倍以上。顺纹拉伸和冲击断口有明显的纤维拔出特征;而横纹拉伸和冲击断口具有解理断裂特征,为典型的脆性断裂断口。竹纤维具有比基体高的耐磨性,磨损表面以微犁切和微开裂为主要损伤特征。竹材的耐磨性能随竹纤维含量的升高而提高。
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| 关 键 词： | 竹材 纤维 密度 力学性能 磨料磨损 |
A Study of the Mechanical Properties and Abrasive Wear Properties of Bamboo |
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| Sun Junjie,Wang Zhiqin,Wang Baogang,Ye Wei,Deng Zhihua,Ma Yunhai.A Study of the Mechanical Properties and Abrasive Wear Properties of Bamboo[J].Journal of Agricultural Mechanization Research,2011,33(7). |
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| Authors: | Sun Junjie Wang Zhiqin Wang Baogang Ye Wei Deng Zhihua Ma Yunhai |
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| Institution: | Sun Junjie,Wang Zhiqin,Wang Baogang,Ye Wei,Deng Zhihua,Ma Yunhai(Key Laboratory of Terrain-machine Bionics Engineering,Jilin University,Changchun 130022,China) |
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| Abstract: | The mechanical property and abrasive wear of natural bamboo were studied.The tensile strength,elastic modulus,fracture elongation and impact toughness of natural bamboo increased with the content of the fiber.The tensile strength of the longitudinal grain is 29 times higher,elastic modulus 1.2 times higher and fracture elongation 13 times higher than that to the cross grain.The tensile and impact fracture of the longitudinal grain have obvious fiber pull-out characteristics.The tensile and impact fracture o... |
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| Keywords: | bamboo fiber density mechanical property abrasive wear |
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