Effect of Underwater Explosion on Offshore Platforms
Publish place: 10th International Congress on Civil Engineering
Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICCE10_0115
تاریخ نمایه سازی: 19 تیر 1394
Abstract:
Underwater explosion is one of the main threats to offshore installations. Prediction of damages to such structures as Jacket-Template (J-T) Platform is one of the priorities in today’s research on offshore structures. In the present study, underwater explosion is simulated using Finite Element (FE) code and its effect on J-T Platform is investigated. To verify the correctness of modeling underwater explosion in the FE code, a thin rectangular plate, subjected to a shock wave was modeled and the result of analysis of this model was compared to those cited in the literature and excellent correlation was observed. After successful model validation, a 79.85m high J-T Platform, comprising of 258 pipe members, was modeled. The pipe's material was assumed to be elasto-plastic following Johnson-Cook strain rate hardening rule. Different amounts of charge mass were placed at different distances from the offshore platform and their effect on the structure, were investigated
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Authors
Abbas Pejman
Graduate Student, Civil & Environmental Eng. Dept., Shiraz University
seyed ahmad anvar
facutly members civil&Environmental Eng. Dept., Shiraz University
gholamreza rakhshandehroo
facutly members civil&Environmental Eng. Dept., Shiraz University
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