| 竹材增强杨木单板层积材冲击性能的研究 |
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| 引用本文： | 朱一辛,关明杰,张晓冬.竹材增强杨木单板层积材冲击性能的研究[J].南京林业大学学报(自然科学版),2005,29(6):99-102. |
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| 作者姓名： | 朱一辛 关明杰 张晓冬 |
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| 作者单位： | 南京林业大学竹材工程研究中心,江苏,南京,210037 |
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| 基金项目： | 国家高技术研究发展计划（2002AA245171）;江苏省科技攻关项目（BE2003309） |
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| 摘 要： | 研究了在杨木单板层积材中加入竹材作为增强材料,以提高杨木单板层积材冲击性能.结果表明：将竹材加入杨木单板层积材,可以明显地改善杨木单板层积材的冲击韧性.当竹篾分别加入杨木单板层积材的上下次表层和中间部位时,其冲击韧性分别增强了30.4%和27.3%;总冲击能分别提高了31.7%和28.1%.裂纹形成能仅增长7.2%和12.8%;裂纹扩展能增长40.9%和43.4%;韧性指数值提高了27.2%和31.5%.
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| 关 键 词： | 竹材 杨木 单板层积材 冲击性能 |
| 文章编号： | 1000-2006（2005）06-0099-04 |
| 收稿时间： | 2005-06-30 |
| 修稿时间： | 2005-06-302005-09-27 |
Studies on Impact Performance of Bamboo Strengthened Laminated Veneer Lumber of Poplar |
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| ZHU Yi-xin,GUAN Ming-jie,ZHANG Xiao-dong.Studies on Impact Performance of Bamboo Strengthened Laminated Veneer Lumber of Poplar[J].Journal of Nanjing Forestry University(Natural Sciences ),2005,29(6):99-102. |
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| Authors: | ZHU Yi-xin GUAN Ming-jie ZHANG Xiao-dong |
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| Institution: | Bamboo Engineering Research Centre Nanjing Forestry University, Nanjing 210037,China |
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| Abstract: | This paper dealed with the feasibility of increasing the impact of poplar laminated veneer lumber by adding bamboo veneer into to the configuration of LVL. The results showed that bamboo could obviously enhance the impact performance of LVL compared with pure poplar LVL. When bamboo was put on the two surface of LVL sandwich and in the middle of that, the impact toughness increased 30.4% and 27.3% respectively. As well as energy W1 went up 31. 7% and 28. 1%. While crack forming energy W1 slightly increased 7.2% and 12.8% respectively. Crack propagation energy Wp increased 40.9% and 43.4% with ductility index increasing 27.2% and 31.5%. |
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| Keywords: | Bamboo Poplar Laminated veneer lumber(LVL) Impact performance |
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