Blast wave dynamics: The influence of the shape of the explosive

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Show simple item record Artero Guerrero, José Alfonso Pernas Sánchez, Jesús Teixeira-Dias, Filipe 2020-12-03T12:17:03Z 2020-12-03T12:17:03Z 2017-06-05
dc.identifier.bibliographicCitation Artero-Guerrero, J., Pernas-Sánchez, J., & Teixeira-Dias, F. (2017). Blast wave dynamics: The influence of the shape of the explosive. Journal of Hazardous Materials, 331, 189-199.
dc.identifier.issn 0304-3894
dc.description.abstract A numerical model is developed to analyse the influence of the shape of a high-explosive on the dynamics of the generated pressure wave. A Multi-Material Arbitrary Lagrangian Eulerian (MM-ALE) technique is used as the CONWEP approach is not adequate to model such situations. Validation and verification of the proposed numerical model is achieved based on experimental data obtained from the bibliography. The numerical model provides relevant information that cannot be obtained from the experimental results. The influence of the mass and shape of the high-explosive is studied and correlated to the dynamics of the generated blast wave through the analysis of peak pressures, time of arrival and impulse. Tests are done with constant mass hemispherical, cylindrical and flat-shaped Formex F4HV samples. A detailed analysis of the generated blast wave is done, along with a thorough comparison between incident and reflected waves. It is concluded that the dynamic effects of the reflected pressure pulses should always be considered in structural design, most relevantly when analysing closed structures where the number of reflections can be significant. The model is proved reliable, concluding that the frontal area of the high-explosive is a determinant driving parameter for the impulse generated by the blast. (C)2017 Elsevier B.V. All rights reserved.
dc.description.sponsorship This research was done with the financial support of the mobility internship for researchers of Carlos III University of Madrid (Spain) (“Programa propio de investigación - Convocatoria 2014 movilidad”).
dc.language.iso eng
dc.publisher Elsevier
dc.rights © 2017 Elsevier
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.subject.other Blast wave
dc.subject.other Multi-material Arbitrary Lagrangian
dc.subject.other Eulerian
dc.subject.other Fluid structure interaction
dc.subject.other Impulse
dc.subject.other High-explosive
dc.subject.other Fluid-structure interaction
dc.subject.other Range spherical explosions
dc.subject.other High-velocity impacts
dc.subject.other Numerical-simulation
dc.title Blast wave dynamics: The influence of the shape of the explosive
dc.type article
dc.subject.eciencia Ingeniería Mecánica
dc.rights.accessRights openAccess
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 189
dc.identifier.publicationlastpage 199
dc.identifier.publicationtitle Journal of Hazardous Materials
dc.identifier.publicationvolume 331
dc.identifier.uxxi AR/0000019917
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