Comparison of Peel and Lap Shear Bond Strengths for Elastic Joints with and without Residual Stresses

Abstract

Fracture energies have been calculated from peel and lap shear experiments on rubber strips bonded together with a pressure sensitive acrylic adhesive layer. In some cases, one strip was held stretched during bonding, to create joints with built in stresses. Good agreement was obtained in all cases, provided that elastic strain energy was taken into account, the work of detachment being about 180 J/sq. m. For thick rubber layers, about 3 - 4 mm. or greater, the strain induced by peel or shear forces was rather small and the assumption of linear elastic behavior was found to be satisfactory. Good agreement was then obtained with the relations derived by Kendall (1,2). Keywords: Adhesion, Bonding, Debonding, Peel, Shear, Strength, Stress, Stress(Shrinkage).

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1989
Accession Number
ADA208102

Entities

People

  • Alan Neville Gent
  • C. W. Lin

Organizations

  • University of Akron

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Adhesion
  • Adhesives
  • Air Force
  • Air Force Facilities
  • Biological Sciences
  • Chemistry
  • Elastic Properties
  • Engineering
  • Materials
  • Measurement
  • Military Research
  • Physics
  • Shear Strength
  • Stress Strain Relations
  • Stresses
  • United States
  • Weapons

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Structural Health Monitoring of Composite Structures.