A Finite Element Analysis of Adhesively Bonded Composite Joints Including Geometric Nonlinearity, Nonlinear Viscoelasticity Moisture Diffusion and Delayed Failure.

Abstract

A two-dimensional finite-element computational procedure is developed for an analysis of adhesively bonded joints with nonlinear viscoelasticity, moisture diffusion and delayed failure models. Effect of temperature and stress level on the viscoelastic response is taken into account by a nonlinear shift factor definition, and penetrant sorption is accounted via a nonlinear Fickean diffusion model in which the diffusion coefficient is dependent on the penetrant concentration and dilatational strain. A delayed failure criterion based on the Reiner-Weisenberg failure theory is also included. Several example problems are: Adhesive joints, bonded joints, finite element analysis, composite joints, moisture diffusion, delayed failure, nonlinear viscoelasticity, numerical results.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1987
Accession Number
ADA187455

Entities

People

  • Junuthula N. Reddy
  • Shobhan Roy

Tags

Communities of Interest

  • Engineered Resilient Systems

DTIC Thesaurus Topics

  • Bonded Joints
  • Boundary Value Problems
  • Coefficients
  • Composite Materials
  • Computer Programs
  • Constitutive Equations
  • Diffusion Coefficient
  • Elastic Properties
  • Engineering
  • Finite Element Analysis
  • Geometry
  • Laminates
  • Materials
  • Materials Science
  • Mechanics
  • Micromechanics
  • Two Dimensional

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Agricultural Chemistry/Soil Science
  • Reinforced Composite Materials