| 立方体劈裂抗拉强度的复变函数解 |
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| 引用本文： | 王华宁,吕爱钟.立方体劈裂抗拉强度的复变函数解[J].力学与实践,2001,23(1):27-30. |
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| 作者姓名： | 王华宁 吕爱钟 |
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| 作者单位： | 1. 同济大学工程力学与技术系,
2. 山东科技大学土木系, |
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| 摘 要： | 立方体劈裂试验是测定砼抗拉强度的间接方法，本采用平面弹性得籴方法对试验中的劈拉应力进行了求解，对求解中出现的应力异常现象进行了分析处理，最终得到了可靠的解析解，试验证明，带状加载时，破坏从中心开始，由格里菲斯准则给出了砼的抗拉强度公式。
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| 关 键 词： | 混凝土 立方体劈裂试验 复变函数 抗拉强度 劈拉应力 |
| 修稿时间： | 2000年6月5日 |
COMPLEX VARIABLE SOLUTION OF CUBE CLEAVAGE TENSILE STRESS |
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| WANG Huaning,L"U Aizhong.COMPLEX VARIABLE SOLUTION OF CUBE CLEAVAGE TENSILE STRESS[J].Mechanics and Engineering,2001,23(1):27-30. |
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| Authors: | WANG Huaning L"U Aizhong |
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| Abstract: | The cube cleavage test is an indirect method to determine the tensile strength of concrete. In this paper, the cleavage tensile stress is calculated by complex variable method. In the calculation, the abnormal stress in the nearby region of cube's center is properly treated and a reliable analytic solution is obtained. If load is applied uniformly, damage may be started in the region of the center. Then the relationship between cleavage strength and the load is established by Criffith criterion in this paper. |
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| Keywords: | cube cleavage test complex variable function cleavage strength |
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