| 受压混凝土的不可逆变形与刚度衰减的研究 |
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| 引用本文： | 董毓利,谢和平.受压混凝土的不可逆变形与刚度衰减的研究[J].上海力学,1996,17(3):211-215. |
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| 作者姓名： | 董毓利 谢和平 |
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| 作者单位： | 中国科学技术大学
(董毓利)，中国矿业大学
(谢和平)，中国矿业大学(赵鹏) |
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| 基金项目： | 国家杰出青年科学基金，国家教委跨世纪优秀人才专项基金 |
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| 摘 要： | 本文根据内变量定义，引入表征塑性发展和产生损伤的内变量，根据塑性力学和损伤学方法，结合混凝土单调受压应力一应变全曲线的试验结果，对混凝土不可逆变形和刚度衰减进行了研究，经与反复加卸载试验结果相比，吻合较好，如果将其推广至反复加卸载试验极为困难的复杂受力工况将是方便有效的。
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| 关 键 词： | 内变量 不可逆变形 刚度衰减 混凝土 |
ON IRREVERSIBLE DEFORMATION AND MODULUS ATTENUATION OF CONCRETE UNDER COMPRESSION |
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| Dong Yuli.ON IRREVERSIBLE DEFORMATION AND MODULUS ATTENUATION OF CONCRETE UNDER COMPRESSION[J].Chinese Quarterly Mechanics,1996,17(3):211-215. |
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| Authors: | Dong Yuli |
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| Institution: | Dong Yuli (University of Science and Technology of China)
Xie Heping Zhao Peng (China Univesity of Mining and Technology) |
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| Abstract: | In this paper, the irreversible deformation and the modulus attenuation of concrete are studied by using the perfectly elastic constitutive model and the experimental data of concrete under monotonic compression, the evolution equation of irreversible deformation and the modulus attenuation being been obtained. In the analysis, results are in good agreement with the cylic compression experiments. |
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| Keywords: | Internal variable Irreversible deformation Modulus attenuation |
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