Crack Healing in Polymers.

Abstract

The healing of cracks, crazes, voids and mechanical energy losses were studied in a variety of polymer materials. These included amorphous, crystalline, crosslinked polymers, block copolymers and both rigid and soft composites. Mechanical testing methods consisted of uniaxial tension, wedge cleavage, compact tension, fracture, lap shear joint fracture, single edge notch fracture, Izod impact and compact tension fatigue. The important problem to solve was that of strength development, sigma, at a polymer-polymer interface as a function of time, t, temperature, T, pressure, P, and molecular weight, M.

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Document Details

Document Type
Technical Report
Publication Date
Oct 17, 1983
Accession Number
ADA134488

Entities

People

  • R. P. Wool

Organizations

  • University of Illinois Urbana–Champaign

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Biomedical And Dental Materials
  • Block Copolymers
  • Coefficients
  • Continuum Mechanics
  • Diffusion Coefficient
  • Equations
  • Fracture (Mechanics)
  • Materials
  • Materials Science
  • Materials Testing
  • Mechanical Properties
  • Mechanics
  • Molecular Weight
  • Natural Rubber
  • Polymers
  • Stresses
  • Test Methods

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Polymer Science and Technology
  • Reinforced Composite Materials

Technology Areas

  • Microelectronics