|
|||||
|
|
| 纤维板的静曲弹性模量及静曲强度的动态检测 | |
| 引用本文： | 池德汝,童昕,林新青. 纤维板的静曲弹性模量及静曲强度的动态检测[J]. 福建林业科技, 2006, 33(3): 20-23,43 |
| 作者姓名： | 池德汝 童昕 林新青 |
| 作者单位： | 1. 福建工程学院机电及自动化工程系,福建,福州,350014 2. 华侨大学机电及自动化学院,福建,泉州,262021 3. 福建福人木业有限公司,福建,福州,350009 |
| 基金项目： | 福建省自然科学基金资助项目(E0510020) |
| 摘 要： | 利用振动无损检测法测得纤维板的动态静曲弹性模量,并用一元和二元回归分析了纤维板的密度、静态静曲弹性模量、动态静曲弹性模量、静曲强度之间的相关性。结果表明:纤维板的静态静曲弹性模量与动态静曲弹性模量之间,或动态静曲弹性模量与静曲强度之间均密切线性相关;以纤维板的动态静曲弹性模量和密度为自变量与静曲强度建立的二元回归方程,其相关程度较一元回归更为密切。密度及长度与横截面面积比值较大的纤维板,其动态静曲弹性模量与静态值较为接近。 |
| 关 键 词： | 纤维板 静曲弹性模量 静曲强度 振动 无损检测 |
| 文章编号： | 1002-7351（2006）03-0020-04 |
| 收稿时间： | 2006-05-22 |
| 修稿时间： | 2006-05-222006-08-08 |
The Dynamic Detection for the Modulus of Elasticity and the Modulus of Rupture of Fiberboard |
|
| CHI De-ru,TONG Xin,LIN Xin-qing. The Dynamic Detection for the Modulus of Elasticity and the Modulus of Rupture of Fiberboard[J]. Journal of Fujian Forestry Science and Technology, 2006, 33(3): 20-23,43 | |
| Authors: | CHI De-ru TONG Xin LIN Xin-qing |
| Affiliation: | 1. Department of Electromechanical and Automatic Engineering, Fujian University of Technology, Fuzhou, Fujian 350014, China ; 2. College of Mechanical Engineering and Automation, Huaqiao University, Quanzhou, Fujian 362021, China ; 3. Furen Wood Industry Co., Ltd., Fuzhou, Fujian 350009, China |
| Abstract: | The dynamic modulus of elasticity of fiberboard are determined by means of the nondestructive testing using vibration method,and the relativity among the density,the static modulus of elasticity,the dynamic modulus of elasticity and the modulus of rupture are analyzed by using single entry regressive analysis and multiple entry regressive analysis.The results show that the relativity between the static modulus of elasticity and the dynamic modulus of elasticity,and between the dynamic modulus of elasticity and the modulus of rupture,is close and linear,respectively.Multiple entry regressive equation is derived using the modulus of rupture and the dynamic modulus of elasticity as the independent variables combining with bend strength.The relativity of these parameters inmultiple entry regressive equation is much closer than that of single entry regressive equation.The dynamic modulus of elasticity is closer to the static modulus of elasticity of the fiberboard which ratio of density or length and cross-section area ratio is bigger. |
| Keywords: | fiberboard modulus of elasticity modulus of rupture vibration nondestructive testing |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |