Mechanical Behavior and Fracture Characteristics of Off-Axis Fiber Composites; 1 - Experimental Investigation.

Abstract

The mechanical behavior, fracture surfaces, and fracture modes of unidirectional high-modulus graphite/fiber/epox composites subjected to off-axis tensile loads were investigated experimentally. The investigation included the generation of stress-strain-to-fracture data and scanning electron microscope studies of the fractured surfaces. The results led to the identification of fracture modes and distinct fracture surface characteristics for off-axis tensile loading. The results also led to the formulation of criteria for identifying and characterizing these fracture modes and their associated fracture surfaces. The results presented and discussed herein were used in the theoretical investigation and comparisons described in Part II. These results should also provide a good foundation for identifying, characterizing, and quantifying fracture modes in both off-axis and angle-plled laminates.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1977
Accession Number
ADA329380

Entities

People

  • Christos C. Chamis
  • John H. Sinclair

Organizations

  • Glenn Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Bone Fractures
  • Composite Materials
  • Elastic Properties
  • Electron Microscopes
  • Experimental Data
  • Graphitic Materials
  • Laminates
  • Materials Processing
  • Mechanics
  • Microscopes
  • Orientation (Direction)
  • Scanning Electron Microscopes
  • Shear Stresses
  • Strain Gages
  • Stress Strain Relations
  • Stresses
  • Tensile Stress

Fields of Study

  • Materials science

Readers

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

Technology Areas

  • Microelectronics