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Articles

Response of a tank under blast loading -- part I: experimental characterisation of blast loading arising from a gas explosion

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Pages 1023-1041 | Published online: 24 Jul 2012
 

Abstract

In explosion--structure interaction problems such as the dynamic response of a cylindrical shell to a blast load, an accurate prediction of both blast loading and geometrical and/or material nonlinear structural response still remains a hard challenge. Furthermore, closed-form simplified analytical or semi-empirical models provide faster and more versatile tools of analysis. To assess the validity of simplified analytical models as reliable design tools and to check the conformity of numerical simulations, experimental studies are carried out at small scale to give benchmark results. A first study presents blast test results performed on rigid instrumented cylinders to quantify the loading in terms of time and space pressure distribution.

Dans les problèmes d'interaction fluide-structure comme celui de l'interaction d'une onde de choc issue d'une explosion avec un réservoir de stockage, une prédiction précise du chargement généré par l'explosion et de la réponse non linéaire de la structure demeure très difficile à réaliser. Les approches analytiques simplifiées couplées à des relations semi-empiriques issues de l'expérience sont souvent privilégiées pour des raisons de simplicité d'utilisation, de flexibilité d'emploi et de rapidité d'obtention de résultats. Une première campagne d'essais à échelle réduite sur cylindres rigides est menée. Elle vise à quantifier le chargement issu de la détonation d'une charge de gaz.

Acknowledgements

The authors would like to thank the French National Research Agency (ANR) for supporting this research (in the framework of the VULCAIN ANR-07-PGCU project).

Notes

1. Conversion and update of Army TM5-1300, Navy NAVFAC P-397 and Air Force AFR 88-22.

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