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

Abstract

The effect of underwater shock loading on an E-Glass/Epoxy 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.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2010
Accession Number
ADA517585

Entities

People

  • Arun Shukla
  • James Leblanc

Organizations

  • Naval Undersea Warfare Center

Tags

Communities of Interest

  • Air Platforms
  • Counter IED
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Composite Materials
  • Composite Structures
  • Dynamic Response
  • Elastic Properties
  • Epoxy Composites
  • Explosives
  • Failure Mode And Effect Analysis
  • Materials
  • Materials Science
  • Materials Testing
  • Mechanical Properties
  • Mechanics
  • Personal Information Managers
  • Shock Tubes
  • Simulations
  • Strain Gages
  • Tensile Strength

Fields of Study

  • Materials science

Readers

  • Computational Modeling and Simulation
  • Explosive Engineering.
  • Structural Health Monitoring of Composite Structures.