Nonlinear Characterizing of the Crack Growth Behavior in a Filled Elastomer

Abstract

In this study, the crack growth behavior in a filled elastomer containing hard particles embedded in a rubbery matrix was investigated. The specimen was tested at a constant strain rate of 0.067 cm/cm/min at room temperature. Two initial crack lengths, 2.54 mm and 12.7 mm, were considered. A hybrid experimental-numerical method was used to calculate the J-integral value. The results show that the initial crack length had a significant effect on the critical J-integral value for the onset of crack growth, but had no significant effect on the subsequent crack growth behavior. They also show that a power law relationship exists between the crack growth rate and the J-integral. (6 figures, 11 refs.)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2004
Accession Number
ADA424398

Entities

People

  • Chun Ting Liu
  • M. Yen

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Composite Materials
  • Composite Propellants
  • Computer Programs
  • Computers
  • Crack Tips
  • Damage Tolerance
  • Elastomers
  • Experimental Data
  • Fracture (Mechanics)
  • Integrals
  • J Integrals
  • Materials
  • Mechanics
  • Numerical Analysis
  • Particles
  • Strain Rate

Readers

  • Materials Science (Mechanical Engineering).
  • Mechanical Engineering/Mechanics of Materials.