Abstract
Abstract The present study deals with computer modelling of response of slender thin-walled steel shell structures, e.g. distillation columns and steel stacks under pressure wave load with the aim to increase the safety of the equipment mentioned. It is possible only on the basis of detailed knowledge of damaging mechanisms. It is also necessary to master a method of computer modelling and formulate assessment criteria to evaluate a degree of damage. The work generalizes the problem, which, in case of an unprotected structure, has already been discussed in the study ( Schneider, 1997 ). This study dealt at first with the problem of finding an external load which causes a limiting state of the structure, i.e. initiation of its collapse. This follow-up study is devoted, in the first place, to the generalization of the problem in a pressure–impulse diagram so that it could be possible, on the basis of known dimensional characteristics of the structure and known, possibly assumed, intensity of the explosion, to predict a degree of its damage and quantify, in that way, its survivability.
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