Effect of Crack Size on Initiation and Growth Behavior in a Particulate Composite Material

Abstract

An important engineering problem in structural design is evaluating the strength and reliability of the structure. It is well known that the strength of a structure may be degraded during the period of its design life under service loads. One of the common causes of strength degradation is the result of the development of cracks in the structure. However, the development of cracks in a structure does not necessarily mean that the service life of the structure is terminated. Therefore, to determine the ultimate strength or the ultimate service life of a structure, studies should be conducted to determine the significance of flaw types and size as well as the rate of growth. In this study, single-edge notched tensile specimens made from polybutadiene rubber embedded with hard particles were used iii crack propagation tests.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1996
Accession Number
ADA381364

Entities

People

  • Chun Ting Liu
  • Timothy C. Miller

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Composite Materials
  • Crack Propagation
  • Cracks
  • Fracture (Mechanics)
  • Materials
  • Mechanics
  • Military Research
  • Particles
  • Particulates
  • Stress Intensity Factors
  • Stresses
  • Synthetic Rubber

Fields of Study

  • Engineering

Readers

  • Materials Science (Mechanical Engineering).
  • Polymer Science and Engineering.
  • Structural Health Monitoring of Composite Structures.