| 基于DSCM的竹材顺纹抗拉弹性模量测定 |
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| 引用本文： | 李霞镇,任海青,马少鹏.基于DSCM的竹材顺纹抗拉弹性模量测定[J].南京林业大学学报(自然科学版),2011,35(6):107-110. |
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| 作者姓名： | 李霞镇 任海青 马少鹏 |
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| 作者单位： | 1. 中国林业科学研究院木材工业研究所,北京,100091
2. 北京理工大学力学系,北京,100081 |
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| 基金项目： | 国家林业局林业公益性行业科研专项项目(200904034) |
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| 摘 要： | 将数字散斑相关方法(DSCM)用于研究竹材顺纹抗拉弹性模量,并将结果与常规引伸计法结果进行了比较。结果表明两种测定方法误差不超过5%,说明DSCM方法能成功运用于竹材的顺纹抗拉弹性模量的测定。利用该方法测定了5个不同竹龄靠近竹青处、竹肉及靠近竹黄处竹材的顺纹抗拉弹性模量。结果表明:从竹青至竹黄竹材顺纹抗拉弹性模量大致呈依次减小的趋势;随着竹龄的增大,竹材顺纹抗拉弹性模量也呈逐渐增加的趋势。
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| 关 键 词： | 数字散斑相关方法 引伸计法 竹材 顺纹抗拉弹性模量 |
Modulus of elasticity in tension parallel to grain of bamboo based on DSCM |
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| LI Xiazhen,REN Haiqing,MA Shaopeng.Modulus of elasticity in tension parallel to grain of bamboo based on DSCM[J].Journal of Nanjing Forestry University(Natural Sciences ),2011,35(6):107-110. |
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| Authors: | LI Xiazhen REN Haiqing MA Shaopeng |
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| Institution: | LI Xiazhen1,REN Haiqing1*,MA Shaopeng2(1.Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing 100091,China,2.Department of Mechanics,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | Digital speckle correlation method(DSCM) was used in studying modulus of elasticity in tension parallel to grain of bamboo.Results obtained from DSCM were compared with those of conventional extensometer method.The results showed that the errors of the two results were within 5 %,this indicated that DSCM could be used to study modulus of elasticity in tension parallel to grain successfully.Then,the modulus of elasticity in tension parallel to grain of outer,middle and inner layers of five different bamboo w... |
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| Keywords: | DSCM extensometer bamboo MOE in tension parallel to grain |
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