Finite element modeling of electronic
components in projectile
Finite element modeling of electronic components in projectiles( The Abstract
subject to the approval of ARL authority)
Dr. Mohamed Trabia,
Dr. Brendan O'Toole, UNLV
Dr. Samaan Ladkany,
UNLV
Dr. Mostafiz Chowdhury
Abstract:
Electronic components within a projectile can be subjected to severe loads
over extremely short duration during firing. Failure of these components may
have negative implications. While experimental data can be extremely helpful in
understanding the phenomena, collecting such data is difficult. There are also
limitations on the reliability of sensors under these circumstances. Finite
Element Modeling can offer a means to better understand the behavior of these
components. It can also be used to design better techniques to mitigate the
shocks these components are subjected to.
A finite element model of a projectile and gun is created. This model is
subjected to a realistic pressure curve. The projectile model is modified to
include a one-pound mass that represents a typical electronic package.
The model includes effects of friction between the gun and projectile. Effects
of the flexibility of the gun and its boundary conditions are also considered.
A parametric study of the effects of moving the plate and the mass in the axial
direction on the acceleration within and outside the gun barrel is presented.
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