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DAMAGE MODES AND FAILURE MECHANISM OF 160,000 m3 LNG OUTER CONCRETE TANK UNDER IMPACT LOADING |
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| รหัสดีโอไอ | |
| Title | DAMAGE MODES AND FAILURE MECHANISM OF 160,000 m3 LNG OUTER CONCRETE TANK UNDER IMPACT LOADING |
| Creator | Ximei Zhai, Xinyu Zhao, Xinrui Li |
| Contributor | - |
| Publisher | ISEC PRESS |
| Publication Year | 2560 |
| Keyword | LNG storage tank, concrete dome, cylindrical impactor, dynamic response, response characteristic, impact parameter. |
| Abstract | In order to investigate the damage models and failure mechanism of the outer concrete tank of the liquefied natural gas (LNG) storage tank under impact loading, the finite element (FE) model of the outer concrete tank of 160000m3 LNG storage tank for an actual LNG project and a cylindrical impactor are established based on ANSYS/LS-DYNA FE analysis software platform. Through the result comparison of the numerical simulation and an impact perforation test of reinforced concrete slabs subjected to projectile with high speed, the accuracy of the numerical simulation method and material model proposed from this paper are verified. The dynamic response of the concrete dome for LNG outer concrete tank structures under impact loading with varying speed, angle, location and diameter of impactor are studied. Based on response rules and failure phenomena of the dome for LNG outer concrete storage tank subject to impact loading, three damage modes are defined, and the failure mechanism for each mode is revealed from the view point of energy, and the response characteristics and rules with the change of the impact parameter are obtained. |
| ISBN | 978-0-9960437-4-8 |
