Strain Rate Sensitivity of Polymer-Matrix Composites under Mode I delamination

Abstract

This effort examines the combined effects of temperature and strain- rate upon the Mode I fracture toughness of advanced composites. The material systems used were As4/APC-2, a semi-crystalline thermoplastic matrix system; and AS4/3502, a thermosetting epoxy matrix system. The focus of this effort was to investigate whether the Mode I fracture toughness varies with temperature and strain-rate for these systems. The applied crack opening displacement rates utilized were from 0.02 to 20.0 inches per minute and a temperature range from ambient to 350 deg F. Post failure fractographic examinations were utilized to correlate significant variations in mechanical properties with fractographic features. Mechanical test results were summarized via data plots with error bars to show which effects were statistically significant.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1990
Accession Number
ADA232761

Entities

People

  • M. D. Kistner

Organizations

  • Wright Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Composite Materials
  • Crack Propagation
  • Graphitic Materials
  • Laminates
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Measurement
  • Mechanical Properties
  • Physical Properties
  • Resins
  • Strain Rate
  • Thermoplastic Composites
  • Thermoplastic Resins
  • Toughness

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Reinforced Composite Materials