Predicting the Crack Growth Behavior in a Filled Elastomer

Abstract

In this study, single-edge cracked uniaxial specimens with an initial crack length of 0.1 in or 0.3 in and wedge-shaped sheet specimens with an initial crack length of 0.3 in were tested at a constant displacement rate of 50 in/min under 1000 psi confining pressure. The specimens were made of a highly filled polymeric material, containing 86% by weight of hard particles embedded in a rubbery matrix. The uniaxial crack growth data were used to develop a crack growth model, relating crack growth rate da/dt and Mode I stress intensity factor KI. The developed crack growth model was used to predict the crack growth behavior in the wedge-shaped specimen. The results of the analysis indicated that the predicted crack growth rate compared well with the experiment.

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Document Details

Document Type
Technical Report
Publication Date
Jan 14, 2005
Accession Number
ADA439995

Entities

People

  • C. T. Liu
  • H. K. Ching
  • Max Yen

Organizations

  • Southern Illinois University Carbondale

Tags

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Composite Materials
  • Crack Tips
  • Cracks
  • Displacement
  • Elastomers
  • Equations
  • Experimental Data
  • Failure Mode And Effect Analysis
  • Fracture (Mechanics)
  • Intensity
  • Materials
  • Mechanics
  • Particles
  • Regression Analysis
  • Stress Intensity Factors
  • Stresses

Fields of Study

  • Materials science

Readers

  • Fluid Dynamics.
  • Materials Science (Mechanical Engineering).