| 半刚性材料抗弯拉强度的测定及不确定度评定 |
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| 引用本文： | 刘国寿,王时越,刘寒芳,赖正聪.半刚性材料抗弯拉强度的测定及不确定度评定[J].科学技术与工程,2010,10(27). |
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| 作者姓名： | 刘国寿 王时越 刘寒芳 赖正聪 |
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| 作者单位： | 1. 昆明理工大学建筑工程学院,昆明,650224
2. 昆明市建设工程质量检测中心,昆明,650000 |
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| 基金项目： | 云南省教育厅科研基金项目 |
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| 摘 要： | 针对柔性路面材料中的一种--半刚性材料,在MTS810试验机上进行静载试验,得到了半刚性材料的抗弯强度,然后根据试验结果,并考虑多个方面的不确定度来源,对其进行不确定度分析和评定.分析结果表明:自由度是最主要的影响因素,相比较而言,其它因素引入的不确定度几乎可以忽略.在条件允许的情况下,应尽量增加试件数量,并选择大尺寸的试件.
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| 关 键 词： | 抗弯拉强度 半刚性材料 不确定度 |
| 收稿时间： | 2010/6/22 0:00:00 |
| 修稿时间： | 2010/6/23 0:00:00 |
An Evaluation of Measurement Uncertainty on Bending Strength of Semi-rigid Material |
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| liuguoshou,and.An Evaluation of Measurement Uncertainty on Bending Strength of Semi-rigid Material[J].Science Technology and Engineering,2010,10(27). |
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| Authors: | liuguoshou and |
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| Institution: | LIU Guo-shou,WANG Shi-yue,LIvU Han-fang1,LAI Zheng-cong(Faculty of Architectural Engineering,Kunming University of Science and Technology,Kunming 650224,P.R.China,Kunming Testing Center of Construction Quality1,Kunming 650000,P.R.China) |
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| Abstract: | Static test of semi-rigid material is finished on MTS 810 material test system , and the bending strength is obtained. Then the analysis of measurement uncertainty is completed in consideration of many factors. The accuracy of testing machine, measurement tools of the sample size, beam span and the times of tests are the important aspects in analysis. The result shows that the number of samples is the most important factors which affect the result. At the same time, conditions permitting, increasing the amount of samples and the choosing big size specimen could reduce the impact on measurement uncertainty. |
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| Keywords: | bending strength semi-rigid material uncertainty |
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