Abstract

Performance of a bolted flange joint is characterized mainly by its’ strength’ and ‘sealing capability’. Performance of bolted flange joints is mostly discussed under steady state loading with and without internal pressure loading. The present design codes also do not address the effects of steady state and thermal transient loading on the joint’s performance. Use of different gaskets also affects the performance of a gasketed joint due to the joint relaxation behavior. In this paper, performance of the gasketed bolted flange joint is analyzed using two different gaskets i.e. solid plate and spiral wound when it is subjected to combined internal pressure and steady state thermal loading using detailed nonlinear finite element analysis.

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