- Tytuł:
- Influence of selected parameters of the fragmentation warhead on its effectiveness
- Autorzy:
-
Panowicz, R.
Konarzewski, M. - Powiązania:
- https://bibliotekanauki.pl/articles/242782.pdf
- Data publikacji:
- 2015
- Wydawca:
- Instytut Techniczny Wojsk Lotniczych
- Tematy:
-
directed fragmentation warheads
dynamics
finite element method - Opis:
- The aim of the paper is to present the results of research on the influence of fragmentation warhead selected parameters on spreading capabilities. Fragmentation warhead is used to combat shaped charges and consists of metallic cover, explosive material and fragmentation liner. Fragmentation liner is built from metal balls or cylinders embedded in the resin. The explosives, initiated by a igniter, causes driving the liner in a few milliseconds up to about 900 m/s. The liner, as well as the case, fragments into many parts during this dynamic load. Geometric parameters of the fragmentation warhead affect the fragments velocity, their mass or geometric dimensions which are the most important parameters determining effectiveness of the warhead. In order properly to describe behaviour of fragmentation warhead arbitrary Lagrangian-Eulerian (ALE) and fluid-structure interaction (FSI) approach was used. In this method, the fragmentation liner is modelled using Lagrange description while the resin, the explosive charge and the surrounding air are modelled using Euler description. A three dimensional model of directed fragmen-tation warhead along with the fragmentation liner was prepared in MSC.Patran software and the dynamic phenomena analysis used a nonlinear finite element method implemented in the LS-DYNA program.
- Źródło:
-
Journal of KONES; 2015, 22, 3; 193-200
1231-4005
2354-0133 - Pojawia się w:
- Journal of KONES
- Dostawca treści:
- Biblioteka Nauki