Comparison of dynamic structural responses of blast walls subjected to hydrogen blast loads
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Shipbuilding and maritime industries are increasingly focusing on alternative fuels to achieve decarbonization. Among the various options, hydrogen fuel is regarded as the most promising; however, it features an inherent and significant explosion risk. To address this risk, hydrogen blast load scenarios were selected and applied to blast walls typically installed in offshore structures. The dynamic structural responses of these blast walls were analyzed and compared in terms of the maximum displacement, fracture occurrence, and stress and plastic strain distributions using both single-degree-of-freedom and finite element methods. Lastly, a conceptual blast wall design was proposed, and its applicability to blast wall design was evaluated.
Abstract
Shipbuilding and maritime industries are increasingly focusing on alternative fuels to achieve decarbonization. Among the various options, hydrogen fuel is regarded as the most promising; however, it features an inherent and significant explosion risk. To address this risk, hydrogen blast load scenarios were selected and applied to blast walls typically installed in offshore structures. The dynamic structural responses of these blast walls were analyzed and compared in terms of the maximum displacement, fracture occurrence, and stress and plastic strain distributions using both single-degree-of-freedom and finite element methods. Lastly, a conceptual blast wall design was proposed, and its applicability to blast wall design was evaluated.