Blast and Impact Loading and Response of Structures
Full Session with Abstracts
Vapor cloud explosion (VCE) due to hydrocarbon release is one of the critical hazards in the offshore oil and gas field resulting in huge environmental impact as well as loss of valuable assets and lives as observed from the historical disasters in the oil and gas industry. In response to these events, stronger international rules and regulations have been made to ensure the structural integrity of offshore installations. Hence, considerable effort has been devoted to quantify accidental design loads for flammable gas based on probabilistic approaches which requires extensive computational fluid dynamic simulations. In this presentation, major issues and difficulties in structural design and evaluation for probabilistic design loads will be discussed. Uncertainties in explosion hazard analysis which cause large variations in probabilistic explosion responses are reviewed. Incredible gaps between provisions for design load estimation based on probabilistic approaches versus current structural design and analysis schemes are compared. Finally, it is concluded that there is an urgent need for reliable guidelines for risk-based structural design and simulation for probabilistic explosion design loads.