| Numéro |
J. Phys. IV France
Volume 10, Numéro PR9, September 2000
EURODYMAT 2000 - 6th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
|
|
|---|---|---|
| Page(s) | Pr9-451 - Pr9-456 | |
| DOI | https://doi.org/10.1051/jp4:2000975 | |
J. Phys. IV France 10 (2000) Pr9-451-Pr9-456
DOI: 10.1051/jp4:2000975
Application of nonlinear programming to explosively formed projectile design
J. Houman1, Z. Ruoqi1 and Z. Shouqi21 Department of Applied Physics, National University of Defense Technology, Changsha 410073, China
2 China Academy of Engineering Physics, Chengdu 621900, China
Abstract
The methodology of explosively formed projectile(EFP)
design by way of nonlinear programming has been investigated. A nonlinear
programming model to design an EFP with expected shape has been set up. The
shape of the generator of liner surface is described with a function in the
form of a circular arc added with amending terms. An efficient BFGS variable
metric sequential programming algorithm was implemented into the nonlinear
programming code SQP, which was then coupled with the finite element code
DYNA2D. With the resulting code, namely SQPDYNA, two EFPs were optimized, one
with flared tail and the other without. Both of them met quite well the preset
requirements. Measured EFP velocity and contours agree well with the
optimization results.
© EDP Sciences 2000