A Critical Examination of Stresses in an Elastic Single Lap Joint.

Abstract

The results of an approximate nonlinear finite-element analysis of a single lap joint are presented and compared with the results of a linear finite-element analysis, and the geometric nonlinear effects caused by the load-path eccentricity on the adhesive stress distributions are determined. The results from finite-element, Goland-Reissner, and photoelastic analyses show that for a single lap joint the effect of the geometric nonlinear behavior of the joint has a sizable effect on the stresses in the adhesive. The Goland-Reissner analysis is sufficiently accurate in the prediction of stresses along the midsurface of the adhesive bond to be used for qualitative evaluation of the influence of geometric or material parametric variations. Detailed stress distributions in both the adherend and adhesive obtained from the finite-element analysis are presented to provide a basis for comparison with other solution techniques. (MM)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1979
Accession Number
ADA305131

Entities

People

  • James W. Sawyer
  • Paul A. Cooper

Organizations

  • Langley Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Adhesives
  • Bending Moments
  • Bonded Joints
  • Equations
  • Finite Element Analysis
  • Laminates
  • Materials
  • Modulus Of Elasticity
  • Nonlinear Analysis
  • Numerical Analysis
  • Shear Modulus
  • Shear Strength
  • Shear Stresses
  • Stiffness
  • Stress Concentration
  • Two Dimensional

Fields of Study

  • Engineering

Readers

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