Computational Analysis of Effect of Transient Fluid Force on Composite Structures

Abstract

This study investigated the peak pressure applied to a composite structure under various transient velocity profiles, fluid boundary conditions, as well as structural geometric configurations and material properties. Then, the resultant dynamic responses of the composite structures were investigated. The study was conducted by modeling fluid-structure interaction using the finite-element and finite-volume analysis technique. The results showed that the peak pressure and the resultant stresses in the composite structures are significantly dependent on the accelerating state as well as fluid boundary conditions. The peak stresses determined in this study were between three and 16 times larger than the steady state stress for the given fluid acceleration profile.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2013
Accession Number
ADA621761

Entities

People

  • Scott C. Knutton

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Central Processing Units
  • Composite Materials
  • Composite Structures
  • Computational Fluid Dynamics
  • Dynamic Response
  • Engineers
  • Fluid Dynamics
  • Fluid Flow
  • Materials
  • Mechanical Engineering
  • Mechanics
  • Navy
  • Operating Systems
  • Steady State
  • Tensile Strength
  • Unmanned Underwater Vehicles

Readers

  • Computational Fluid Dynamics (CFD)
  • Control Systems Engineering.
  • Mechanical Engineering/Mechanics of Materials.