Penetration and perforation of composite sandwich panels by hemispherical and conical projectiles
- Univ. of Manchester Inst. of Science and Technology (United Kingdom). Applied Mechanics Div.
The results of penetration and perforation tests carried out on composite sandwich panels with GRP skins and PVC foam cores using hemispherical-ended and conical-nosed indenters/projectiles under quasi-static, drop-weight, and ballistic impact conditions, with impact velocities up to 305 m/s, are described. Load-displacement characteristics under quasi-static loading are presented and the ballistic limits as well as perforation energies are determined. A classification of the sandwich panel responses based on the panel thickness-to-projectile diameter ratio is deduced. General empirical formulas that predict the dynamic perforation energies for fiber-reinforced plastic (FRP) laminates and composite sandwich panels loaded by hemispherical-ended projectiles are derived. The empirical equations correlate well with available experimental data. It is shown that, to a first approximation, the formulas obtained for hemispherical-ended projectiles are also applicable to conical-nosed projectiles.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 619451
- Journal Information:
- Journal of Pressure Vessel Technology, Journal Name: Journal of Pressure Vessel Technology Journal Issue: 2 Vol. 120; ISSN JPVTAS; ISSN 0094-9930
- Country of Publication:
- United States
- Language:
- English
Similar Records
Eulerian simulation of the perforation of aluminum plates by nondeforming projectiles
Rate-Dependent Dynamic Cylindrical Cavity Expansion Equations for Conical- and Ogival-Nosed Projectiles