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Nonlinear structural response in jet fire in association with the interaction between fire loads and time-variant geometry and material properties

Authors
Kim, Sang JinLee, JinKim, Sang HwanSeo, Jung KwanKim, Bong JuHa, Yeon ChulPaik, Jeom KeeLee, Kang SuPark, ByoungjaeKi, Min SukSohn, Jung Min
Issue Date
1-11월-2017
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Keywords
Fire loads; Time-variant geometry and material properties; Structural response; Two-way FSI analysis; Time increments
Citation
OCEAN ENGINEERING, v.144, pp 118 - 134
Pages
17
Journal Title
OCEAN ENGINEERING
Volume
144
Start Page
118
End Page
134
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/557
DOI
10.1016/j.oceaneng.2017.08.028
ISSN
0029-8018
Abstract
For safety design of structures against fire loads, time-variant geometry and material properties depending on the temperature should be considered with fluid-structure interaction (FSI) analysis. One-way FSI analysis is generally applied due to a time consuming task. But, it has big difference of structural response between conducting one-way and two-way FSI analysis. And two-way analysis is also affected by time increment of analysis for updating the geometry, and fire loads. The aim of this study is to investigate the effect of time increments on two-way FSI analysis of structures subjected to jet fire, and to suggest a proper time increment for two-way FSI analysis. In the present study, geometries and material properties are updated at every time increments, and kinds of two-way FSI analysis are performed with different time increments by using computational fluid dynamics (CFD) and nonlinear finite element analysis (NLFEA) and an interface program between CFD and NLFEA.
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