An novel energy dissipator with self-recovery capability after deformation for structurally energy-dissipating rock-shed
文献类型：期刊论文
| 作者 | Xie, Qi-Jun5 ; Su, Li-Jun2,3,5; Bai, Hao4; Tang, Hao1,4; Zhang, Chong-Lei5; Yu, Fang-Wei5
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| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
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| 出版日期 | 2021-11-01 |
| 卷号 | 18期号:11页码:3058-3068 |
| 关键词 | Recoverable energy dissipator Dynamic constitutive model Rockfall test Numerical simulation Resist multiple impacts |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-020-6601-6 |
| 英文摘要 | The performance of a structurally dissipating rock-shed (SDR) depends largely on the capacity of its energy dissipators. At present, most energy dissipators are made of metals, which dissipate energy by unrecoverable plastic deformation. Therefore, they are not able to recover their energy-dissipation capacity after deformation under rockfall impact. However, a rockfall usually disintegrates into pieces when it rolls down from a higher position and results in multiple rockfall impacts. An energy dissipator with self-recovery capability is therefore more suitable for ensuring the safety of SDRs. Replacing metal with polyurethane (a hyperelastic material with remarkable self-recovery capability) can provide self-recovery capability for energy dissipators, making them more suitable for resisting multiple rockfall impacts. In this work, polyurethane was manufactured into two types of energy dissipators: cylindrical and cubical. Full-scale falling rock impact tests and dynamic numerical simulations were conducted to study the mechanical response of the energy dissipators. In addition, in order to ensure the accuracy of the simulation, the dynamic mechanical properties of the polyurethane were tested and its dynamic constitutive model was established. The experimental and simulation tests have clarified the advantages of the polyurethane energy dissipator. We also summarized the practical considerations in the design of energy dissipators. |
| WOS关键词 | VISCOELASTIC CONSTITUTIVE MODEL ; REINFORCED-CONCRETE SLAB ; BEHAVIOR ; POLYURETHANE ; RELAXATION ; IMPACT ; SAND |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000720441400018 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.imde.ac.cn/handle/131551/56325]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 通讯作者 | Su, Li-Jun |
| 作者单位 | 1.Chengdu Univ Technol, Coll Environm & Civil Engn, Chengdu 610051, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.China Pakistan joint Res Ctr Earth Sci, CAS HEC, Islamabad 45320, Pakistan 4.Sichuan Expressway Construct & Dev Grp CO LTD, Chengdu 610041, Peoples R China 5.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Processes, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Qi-Jun,Su, Li-Jun,Bai, Hao,et al. An novel energy dissipator with self-recovery capability after deformation for structurally energy-dissipating rock-shed[J]. JOURNAL OF MOUNTAIN SCIENCE,2021,18(11):3058-3068. |
| APA | Xie, Qi-Jun,Su, Li-Jun,Bai, Hao,Tang, Hao,Zhang, Chong-Lei,&Yu, Fang-Wei.(2021).An novel energy dissipator with self-recovery capability after deformation for structurally energy-dissipating rock-shed.JOURNAL OF MOUNTAIN SCIENCE,18(11),3058-3068. |
| MLA | Xie, Qi-Jun,et al."An novel energy dissipator with self-recovery capability after deformation for structurally energy-dissipating rock-shed".JOURNAL OF MOUNTAIN SCIENCE 18.11(2021):3058-3068. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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