Dynamic Large Deflection Response of RC Beams under Low-Speed Impact Loading
The dynamic large deflection response of RC beams under low-speed impact loading at their midspan is investigated in this paper. Two simple methods such as extended Hamilton’s principle and equivalent static hypothesis are used to establish the theoretical models for both simply supported and fully...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/8812890 |
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| _version_ | 1832547699983908864 |
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| author | Lu Guo Renwei Mao Zhifang Liu Shiqiang Li Guiying Wu Zhihua Wang |
| author_facet | Lu Guo Renwei Mao Zhifang Liu Shiqiang Li Guiying Wu Zhihua Wang |
| author_sort | Lu Guo |
| collection | DOAJ |
| description | The dynamic large deflection response of RC beams under low-speed impact loading at their midspan is investigated in this paper. Two simple methods such as extended Hamilton’s principle and equivalent static hypothesis are used to establish the theoretical models for both simply supported and fully clamped RC beams; analytical formulas for the maximum midspan deflection-input impact energy are obtained. The “equal area” method based on the deflection history of beams is only used during these derivations to determine the plastic bending moment and the stress distribution of the structure. Then, finite element simulations are carried out to verify the validity of the proposed predictions. It is shown that the maximum deflections for both simply supported and fully clamped beams are almost proportional with respect to the input impact energy, which agrees well with both simulations and other experimental results. Also, the boundary condition has more effect on the deflection response of the RC beams which is relatively longer. |
| format | Article |
| id | doaj-art-4d7957a306494a4e8988b2da9e2b9c7d |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-4d7957a306494a4e8988b2da9e2b9c7d2025-02-03T06:43:35ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/88128908812890Dynamic Large Deflection Response of RC Beams under Low-Speed Impact LoadingLu Guo0Renwei Mao1Zhifang Liu2Shiqiang Li3Guiying Wu4Zhihua Wang5Institute of Applied Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, ChinaDepartment of Engineering Mechanics, Zhejiang University, Hangzhou 310012, Zhejiang, ChinaInstitute of Applied Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, ChinaInstitute of Applied Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, ChinaInstitute of Applied Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, ChinaInstitute of Applied Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, ChinaThe dynamic large deflection response of RC beams under low-speed impact loading at their midspan is investigated in this paper. Two simple methods such as extended Hamilton’s principle and equivalent static hypothesis are used to establish the theoretical models for both simply supported and fully clamped RC beams; analytical formulas for the maximum midspan deflection-input impact energy are obtained. The “equal area” method based on the deflection history of beams is only used during these derivations to determine the plastic bending moment and the stress distribution of the structure. Then, finite element simulations are carried out to verify the validity of the proposed predictions. It is shown that the maximum deflections for both simply supported and fully clamped beams are almost proportional with respect to the input impact energy, which agrees well with both simulations and other experimental results. Also, the boundary condition has more effect on the deflection response of the RC beams which is relatively longer.http://dx.doi.org/10.1155/2020/8812890 |
| spellingShingle | Lu Guo Renwei Mao Zhifang Liu Shiqiang Li Guiying Wu Zhihua Wang Dynamic Large Deflection Response of RC Beams under Low-Speed Impact Loading Shock and Vibration |
| title | Dynamic Large Deflection Response of RC Beams under Low-Speed Impact Loading |
| title_full | Dynamic Large Deflection Response of RC Beams under Low-Speed Impact Loading |
| title_fullStr | Dynamic Large Deflection Response of RC Beams under Low-Speed Impact Loading |
| title_full_unstemmed | Dynamic Large Deflection Response of RC Beams under Low-Speed Impact Loading |
| title_short | Dynamic Large Deflection Response of RC Beams under Low-Speed Impact Loading |
| title_sort | dynamic large deflection response of rc beams under low speed impact loading |
| url | http://dx.doi.org/10.1155/2020/8812890 |
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