T* (sub Epsilon) Integral of a Particulate Composite

Abstract

Digital image correlation data and the Osgood-Ramberg constitutive relation were used to evaluate the T*(sub epsilon) integral of a particulate composite SEN specimen subjected to stable crack growth. The domain size independency of the T*(sub epsilon) integral of this rubbery composite subjected to large deformation was also assessed with varying inner contours ranging from 2.0 to 5.0 mm with domain sizes of 0.25, 0.50, and 0.75 mm. The near field J-integral decreased while the far-field J-integral continually increased with stable crack growth. The T*(sub epsilon) integral, on the other hand, approached a steady value with crack extension.

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Document Details

Document Type
Technical Report
Publication Date
May 22, 2002
Accession Number
ADA410778

Entities

People

  • A. S. Kobayashi
  • H. Lu
  • J. H. Jackson

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Buildings And Structures
  • Composite Materials
  • Contour Integrals
  • Coordinate Systems
  • Crack Tips
  • Cracks
  • Data Sets
  • Engineering
  • Far Field
  • Integrals
  • J Integrals
  • Materials
  • Mechanical Engineering
  • Military Research
  • Near Field

Readers

  • Linear Algebra
  • Mathematics or Statistics
  • Structural Health Monitoring of Composite Structures.