Non-linear Finite Element Analysis of Offshore Stainless Steel Blast Wall under High Impulsive Pressure Loads

Zubair Imam Syed, Osama Ahmed Mohamed, Shaikh Atikur Rahman

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

Typical blast walls of offshore platform are stainless steel light-weight walls installed to contain the effect of an accidental explosion on the topside of an offshore installation. These walls are mostly designed using simplified analytical techniques like single degree of freedom (SDOF) method using global deformation or displacement as primary response parameter. Thin plate structures like stainless steel blast walls when subjected to high impulsive pressure loads, may damage severely in a particular region without experiencing a significant global deformation. This study presents realistic responses of offshore blast walls under various high impulsive pressure loads generated from accidental hydrocarbon explosions by using detailed non-linear finite element analysis (NFEA). The numerical models were verified against past experimental study on similar metal blast panels. An extensive parametric study was conducted using the verified finite element models to construct pressure-impulse (P-I) diagrams for different deformation levels. These P-I curves or iso-damage lines can be used as a quick assessment tool to determine possible level of damage of similar offshore blast walls due to different high impulsive pressure loading caused from different explosion scenarios.

Original languageEnglish
Pages (from-to)1275-1282
Number of pages8
JournalProcedia Engineering
Volume145
DOIs
Publication statusPublished - 20 May 2016
EventInternational Conference on Sustainable Design, Engineering and Construction 2016 - Tempe, United States
Duration: 18 May 201620 May 2016

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