Damage Modeling of Storage Vessels in Liquefied Natural Gas Facilities due to Flammable Vapor Cloud Explosion

Blast analysis of a storage container inside a liquefied natural gas (LNG) facility needs rigorous finite element analysis (FEA). This paper presents a detailed method of nonlinear dynamic analysis of LNG storage vessels subjected to blast load. The explicit dynamic solver of the commercially availa...

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Bibliographic Details
Published in:Practice periodical on structural design and construction 2023-11, Vol.28 (4)
Main Authors: Bhattacharyya, Rudraprasad, Russian, Oswaldo, Dereli, Ozer, Ozbey, Mehmet
Format: Article
Language:English
Subjects:
Blast loads
Damage assessment
Explosions
Finite element method
Flammable gases
Fluid pressure
Internal pressure
Liquefied natural gas
Mathematical models
Nonlinear dynamics
Storage tanks
Storage vessels
Strain rate
Structural integrity
Vapor clouds
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Summary:Blast analysis of a storage container inside a liquefied natural gas (LNG) facility needs rigorous finite element analysis (FEA). This paper presents a detailed method of nonlinear dynamic analysis of LNG storage vessels subjected to blast load. The explicit dynamic solver of the commercially available FEA software Abaqus is used to perform the analysis. The finite element models of the LNG storage tanks include the static fluid pressure and internal pressure. Constitutive material models include strain-rate dependent elastic-plastic material effects. Based on the results of FEA, recommendations are made for safe practice of maintaining the structural integrity of vessels subjected to vapor cloud explosion (VCE).
ISSN:1084-0680
1943-5576
DOI:10.1061/PPSCFX.SCENG-1336