Dynamic Response and Damage Evolution in Composite Materials Subjected to Underwater Explosive Loading: An Experimental and Computational Study
NAVAL UNDERSEA WARFARE CENTER DIV NEWPORT RI
Pagination or Media Count:
The effect of underwater shock loading on an E-GlassEpoxy composite material has been studied. The work consists of experimental testing, utilizing a water filled conical shock tube and computational simulations, utilizing the commercially available LS-DYNA finite element code. Two test series have been performed and simulated 1 a reduced energy series which allowed for the use of strain gages and 2 a series with increased energy which imparted material damage. The strain gage data and the computational results show a high level of correlation using the Russell error measure. The finite element models are also shown to be able to simulate the onset of material damage by both in-plane and delamination mechanisms.
- Laminates and Composite Materials