Effects of Cavitation on Underwater Shock Loading. Part 1.

Abstract

Reported here are analytic formulations, together with one-dimensional results, in an investigation of the title subject. It is shown that either displacement or a displacement potential may be used as the basic dependent variable for a finite element analysis. Artificial damping is found to be needed to suppress spurious oscillations (a numerical phenomenon) near cavity boundaries. Adequacy of the method is demonstrated by comparison with published results of Bleich and Sandler. Some results are given for effects of cavitation on the performance of resilient attenuators. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1978
Accession Number
ADA059972

Entities

People

  • R. E. Newton

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Engineered Resilient Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Velocity
  • Attenuators
  • Boundaries
  • Bulk Modulus
  • Cavitation
  • Civil Engineering
  • Differential Equations
  • Displacement
  • Dynamic Pressure
  • Engineering
  • Equations
  • Finite Element Analysis
  • Hydrostatic Pressure
  • Oscillation
  • Water Hammer
  • Wave Equations
  • Wave Propagation

Readers

  • Aerodynamics.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Structural Dynamics.