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http://dx.doi.org/10.3744/SNAK.2020.57.2.070

A Review on Practical Use of Simple Analysis Method based on SDOF Model for the Stiffened Plate Structures subjected to Blast Loads  

Kim, Ul-Nyeon (Hyundai Maritime Research Institute, Hyundai Heavy Industries Co., Ltd.)
Ha, Simsik (Offshore & Industrial Plant Engineering Business Unit, Hyundai Heavy Industries Co., Ltd.)
Publication Information
Journal of the Society of Naval Architects of Korea / v.57, no.2, 2020 , pp. 70-79 More about this Journal
Abstract
The offshore installation units may be subjected to various accidental loads such as collision from supply vessels, impact from dropped objects, blast load from gas explosion and thermal load from fire. This paper deals with the design and strength evaluation method of the stiffened plate structures in response to a blast load caused by a gas explosion accident. It is a comprehensive review of various items used in actual project such as the size and type of the explosive loads, general design procedure/concept and analysis method. The structural analyses using simple analysis methods based on SDOF model and nonlinear finite element analysis are applied to the particular FPSO project. Also validation studies on the design guidance given by simple analysis method based on SDOF model have also considered several items such as backpressure effects, material behavior and duration time of the overpressure. A good correlation between the prediction made by simple analysis method based on SDOF model and nonlinear finite element analysis can be generally obtained up to the elastic limit.
Keywords
Blast accident; SDOF; Simple analysis method; Nonlinear finite element analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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