| Constitutive model of rock under static-dynamic coupling loading and experimental investigation |
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| 作者姓名： | 李夕兵 左宇军 王卫华 马春德 周子龙 |
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| 作者单位： | School of Resources and Safety Engineering Ce ntral South University Changsha 410083 China，School of Resources and Safety Engineering Ce ntral South University Changsha 410083 China，School of Resources and Safety Engineering Ce ntral South University Changsha 410083 China，School of Resources and Safety Engineering Ce ntral South University Changsha 410083 China，School of Resources and Safety Engineering Ce ntral South University Changsha 410083 China |
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| 基金项目： | 国家自然科学基金;中国博士后科学基金 |
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| 摘 要： | 1 Introduction Rock fragmentation, boring, explosive, rockburst etc in engineering domain of mineral are almost concerned with cracking of rock experiencing dynamic loading, and a plenty of results have been obtained1]. But the related studies are almos…
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| 关 键 词： | 动荷载 疲劳速率 岩石试验 粘弹性 损伤 本构模型 |
| 收稿时间： | 2005-04-20 |
| 修稿时间： | 2005-09-08 |
Constitutive model of rock under static-dynamic coupling loading and experimental investigation |
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| LI Xi-bing,ZUO Yu-jun,WANG Wei-hua,MA Chun-de,ZHOU Zi-long.Constitutive model of rock under static-dynamic coupling loading and experimental investigation[J].Transactions of Nonferrous Metals Society of China,2006,16(3):714-722. |
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| Authors: | LI Xi-bing ZUO Yu-jun WANG Wei-hua MA Chun-de ZHOU Zi-long |
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| Affiliation: | 1. Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. China Highway Engineering Consulting Corporation, Beijing 100089, China;1. Department of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin 300072, China;2. School of Civil Engineering, Hebei University, Baoding 071002,China |
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| Abstract: | The importance of study on constitutive model of statically loaded rock experiencing dynamic load is set forth, and the studying methods on dynamic constitutive model are classified according to the current studying status. By way of combining statistic damage model and viscoelastic model, uni-axial and multi-axial constitutive models of statically loaded rock experiencing dynamic load (static-dynamic coupling constitutive model) under intermediate strain rate are established. The verification experiment on 2D constitutive model under different static stress and dynamic stress with different frequencies is designed and performed. It is found that there is a good agreement between the experimental stress-strain curves and the theoretical stress-strain curves. |
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| Keywords: | dynamic load static-dynamical coupling loading intermediate strain rate constitutive model damage viscoelasticity |
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