QinetiQ Rosyth have adapted the technology developed for examining the effects of air blast on naval ships to the potential problem of gas explosions over the deck of an FPSO. This study is the second in a sequence and focuses in a more detailed way on spectral content of the gas explosion pressure pulse in relation to the natural elastoplastic response modes of the structure and influence of in-plane stresses in the deck arising from wave-induced hogging and sagging acting simultaneously with the gas explosion.
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