| 砼受压全过程损伤的实验研究 |
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| 引用本文： | 董毓利,谢和平.砼受压全过程损伤的实验研究[J].实验力学,1995,10(2):95-102. |
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| 作者姓名： | 董毓利 谢和平 |
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| 作者单位： | 中国矿业大学 |
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| 基金项目： | 国家教委跨世纪优秀人才专项基金,国家杰出青年基金 |
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| 摘 要： | 本文利用ＭＴＳ公司８１５．０２型电液伺服实验系统对砼进行了等应变速率和单调和循环复受试验，测定了砼单调受压全过程的声发射特性和反复受压时砼弹性模量的变化，经研究发现与声光射相应的损伤能相对比和弹性模量的衰减比均可以表征砼的损伤发展程度，且具有较好的一致性，文中还根据试验结果，给出所定义损伤随应变变化的关系表达式。
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| 关 键 词： | 损伤 声发射 钢筋混凝土 压缩试验 |
Experimental Study on Complete Damage Process of Concrete Under Compression |
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| Dong Yuli,Xie Heping,Zhao Peng.Experimental Study on Complete Damage Process of Concrete Under Compression[J].Journal of Experimental Mechanics,1995,10(2):95-102. |
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| Authors: | Dong Yuli Xie Heping Zhao Peng |
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| Abstract: | In this paper,the experimental results of acoustic emission characteristics in concrete under monotonic compression and the variation of modulus of elasticity of concrete under cyclic compression.are discussed.It is found that the evolution of damage in concrete can be reflected by the ratio of damage energy,the ratio of tangent modulus at commom-point and the ratio of secant modulus under cyclic loading. Finally,the relationships between ratios and strain are given. |
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| Keywords: | concrete damage acoustic emission modulus attenuation |
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