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PELE Fragmentation Dynamics

Verreault, Jimmy and Van Hinsberg, Nils Paul and Abadjieva, Elena (2013) PELE Fragmentation Dynamics. In: Proceedings of the 27th International Symposium on Ballistics, Volume, pp. 1289-1300. DEStech Publications, INC. 27th International Symposium on Ballistics, 22.-26. April 2013, Freiburg, Deutschland. ISBN 978-1-60595-106-5.

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Abstract

An analytical model that describes the PELE fragmentation dynamics is presented and compared with experimental results from literature. The model accounts for strong shock effects and detailed interactions taking place between the filling - the inner core of the ammunition - and the target (including shock wave, expansion wave, free surface and interface interactions). This model is also compared with a simplified model that uses the acoustic approximation and neglects the different wave interactions, which was employed by previously published PELE analytical models. The results are compared quantitatively in terms of fragments' radial velocities and qualitatively in terms of number of fragments, their mass distribution and the fragmentation length of the jacket. It is shown that strong shock effetcs and detailed wave interactions must be accounted for in order to simulate accurately the pressure evolution in the filling, which is the origin of the fragmentation dynamics, especially for impact velocities beyond 1000 m/s.

Document Type:Conference or Workshop Item (Poster)
Title:PELE Fragmentation Dynamics
Authors:
AuthorsInstitution or Email of Authors
Verreault, JimmyTNO
Van Hinsberg, Nils Paulnils.vanhinsberg@dlr.de
Abadjieva, ElenaTNO
Date:April 2013
Journal or Publication Title:Proceedings of the 27th International Symposium on Ballistics
Refereed publication:Yes
In ISI Web of Science:No
Volume:Volume
Page Range:pp. 1289-1300
Editors:
EditorsEmail
Wickert, MatthiasFraunhofer EMI
Salk, ManfredFraunhofer EMI
Publisher:DEStech Publications, INC
ISBN:978-1-60595-106-5
Status:Published
Keywords:PELE, Ballistics, Fragmentation, model
Event Title:27th International Symposium on Ballistics
Event Location:Freiburg, Deutschland
Event Type:international Conference
Event Dates:22.-26. April 2013
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Aeroelastic Experiments
Deposited By: Dr. Ir. Nils van Hinsberg
Deposited On:30 Oct 2013 14:31
Last Modified:08 May 2014 23:29

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