Durability of Structural Adhesively Bonded Systems.

Abstract

An experimental and analytical study was conducted for quantitative evaluation of the interdependence of stress, strain, moisture diffusion and heat conduction in a polymeric adhesive-bonded layer as a function of time. Following experimental evaluation of the necessary coefficients, a set of nonlinear coupled differential equations is solved numerically by the finite strip method. It was shown that moisture diffusion coefficient correlates well with the volumetric changes in the stressed materials. Experimental data of the deformation behavior vs. moisture diffusion in an assymmetrical epoxy-aluminum model exposed to different hygrothermomechanical histories have shown a good correlation with analytical prediction. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1986
Accession Number
ADA170708

Entities

People

  • G. Yaniv
  • O. Ishai
  • P. Bar-yoseph

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Coefficients
  • Composite Materials
  • Differential Equations
  • Diffusion Coefficient
  • Elastic Properties
  • Equations
  • Graphitic Materials
  • Laminates
  • Materials
  • Materials Laboratories
  • Materials Science
  • Mechanical Engineering
  • Mechanical Properties
  • Mechanics
  • Reinforced Plastics
  • Stresses
  • Two Dimensional

Readers

  • Fluid Dynamics.
  • Structural Health Monitoring of Composite Structures.