Accession Number:

ADA517585

Title:

Dynamic Response and Damage Evolution in Composite Materials Subjected to Underwater Explosive Loading: An Experimental and Computational Study

Descriptive Note:

Journal article

Corporate Author:

NAVAL UNDERSEA WARFARE CENTER DIV NEWPORT RI

Personal Author(s):

Report Date:

2010-01-01

Pagination or Media Count:

11.0

Abstract:

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.

Subject Categories:

  • Laminates and Composite Materials
  • Explosions

Distribution Statement:

APPROVED FOR PUBLIC RELEASE