PUBLICATIONS AND VIDEOS
Predictions of loading and structural response in accidental blast events
Speaker(s): Hannes L. Gauch
Organisation(s): Imperial College London & Baker Hughes
Duration: 60 min
This webinar presents the development and application of numerical and analytical models to predict the transient loading exerted on structures by impinging pressure and shock waves of variable intensity and duration. The cases of isolated box-like objects and circular cylinders have been investigated in detail. A numerical solver was used to predict the transient flow around the object and the consequent pressure on the object's surface. An analytical model was developed to predict the transient loading history on all faces of a box-like object and the transient flow around the cylinder; the analytical model was found to be in good agreement with the numerical predictions.
Practical examples of application of the model to typical structures used in turbomachinery packages are presented in this webinar; it is demonstrated that the proposed analytical modelling technique provides less conservative predictions than those made according to existing guidelines. The role of fluid-structure interaction for some simple structures will be briefly explored and a new analytical framework will be presented to study the details of the structural response of a fully clamped beam made from an elastic-plastic material.
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