Computational modeling of confined blast waves with focus on interaction with structures

Abstract Blast loading is a critical extreme condition for most engineering structures. Modeling such scenarios challenging due to the intrinsic non-linearities. Recent numerical methods can capture physics governing blast waves and their interaction with structures in more accurate way than established empirical methods. This article intended as proof of concept that state-of-the-art CFD FE software be combined set up high-fidelity uncoupled simulations. Computational fluid dynamics exploited this work map pressure field developed during detonation reaction Eulerian domain. Then, time history applied finite element framework perform Lagrangian The methodology used compare structural response blast-loaded plates fully confined environments free-field scenarios. It turns out are severe unconfined scenarios, mainly multiple reflections residual quasi-static pressure. Moreover, on one hand, appears contribute further increasing plate out-of-plane deflection, while other it prevents from undergoing reverse buckling or oscillations around initial equilibrium configuration. Experimental tests required provide evidence about latter contribution.