Reference : Pressure-impulse diagram of a beam under explosion - Influence of the indirectly affe...
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Engineering, computing & technology : Civil engineering
Pressure-impulse diagram of a beam under explosion - Influence of the indirectly affected part
Hamra, Lotfi mailto [Université de Liège - ULiège > Département ArGEnCo > Adéquat. struct. aux exig. de fonct.& perfor. techn.-écon. >]
Demonceau, Jean-François mailto [Université de Liège - ULiège > Département ArGEnCo > Département ArGEnCo >]
Denoël, Vincent mailto [Université de Liège - ULiège > Département ArGEnCo > Analyse sous actions aléatoires en génie civil >]
Proceeding of the 7th European conference on steel and composite structures (Eurosteel 2014)
Landolfo, Raffaele
Mazzolani, Frederico
September 10-12, 2014
Department of Structures for Engineering and Architecture of the University of Naples Federico II
[en] blast loading ; pressure-impulse diagram ; frame beam
[en] The paper studies the structural response of a beam subjected to a close-field local internal blast loading.
In the literature, the pressure-impulse (p-I) diagram is commonly used to design elements or structures for a given blast loading. The p-I diagram is a spectrum representing the level sets of damage or required ductility for a given structural system, nonlinear beam in this paper. This representation is much appreciated because a simple reading for the actual pressure p and impulse I of the considered load indicates the ductility demand of the structural system.
Recent works of quasi-static behaviour have indicated the crucial need to account for the membrane effects taking place in the extreme loading of frame beams. This paper will thus extend the state-of-art features, establishing thus the p-I diagram for a beam including the lateral restraints offered by the rest of the structure, the development of non-linear membrane action and also, the M-N interaction that develops in the plastic hinges.
Fonds de la Recherche Fondamentale Collective - FRFC
Researchers ; Professionals ; Students

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