A Real-Time Vision System to Monitor/Analyze the Changes in Composite Specimens During Mechanical Testing

Abstract

Research has demonstrated the feasibility of using digital image processing techniques to determine dimensional changes and analyze qualitative and quantitative fracture processes in fiber-reinforced composite material test specimens that have experienced environmentally and mechanically induced stresses. The application of image analysis techniques during mechanical testing has been shown to facilitate test automation and to provide information essential to interpretation and quantification of mechanical test data. Since fracture is a dynamic process, real-time image acquisition and special image processing techniques are needed to determine specimen size and shape changes, identify where fracture is initiated, and describe how fracture develops in specimens during mechanical testing. Images must be classified and interpreted in terms of appropriate fracture models to facilitate the analysis of mechanical test data and provide a quantitative assessment of damage.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1994
Accession Number
ADA280114

Entities

People

  • Gary B. White
  • James D. Kleinmeyer

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Autonomy
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Air Force
  • Composite Materials
  • Digital Image Processing
  • Digital Images
  • Fiber Reinforced Composites
  • Fiber Reinforced Polymers
  • Image Processing
  • Information Processing
  • Laminates
  • Materials
  • Materials Laboratories
  • Materials Science
  • Military Research
  • Plastics
  • Polymer Matrix Composites
  • Reinforced Plastics

Readers

  • Computer Vision.
  • Materials Science (Mechanical Engineering).
  • Systems Analysis and Design