An Analytical and Experimental Evaluation of the Damping Capacity of Sandwich Beams with Viscoelastic Cores

Abstract

A study is made of the free vibrations of sandwich beams with viscoelastic cores. The study includes formulation of the equations of motion and natural boundary conditions, derivation of expressions for the modal distribution of damping based upon small damping assumptions, numerical examples and a supporting test program. Significant among the numerical results were the high damping rates calculated for beams with steel facings and butyl rubber cores. It was found, however, that the calculated and test values were not in accord. This lack of agreement signifies the necessity for greater refinement in both analytical methods and test procedures.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1966
Accession Number
AD0481048

Entities

People

  • A. Savacchio
  • I. W. Jones
  • V. L. Salerno

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aeronautics
  • Boundaries
  • Butyl Rubber
  • Classification
  • Contractors
  • Contracts
  • Equations
  • Equations Of Motion
  • Materials
  • Materials Science
  • Military Research
  • New York
  • Physics Laboratories
  • Resonant Frequency
  • Rubber
  • Security
  • Vibration

Fields of Study

  • Engineering

Readers

  • Control Systems Engineering.
  • Mechanical Engineering/Mechanics of Materials.
  • Systems Analysis and Design