Constitutive Behavior and Damage Characterization of High Temperature Polymer Composites

Abstract

The objective of this investigation was to characterize the constitutive behavior, physical aging, damage mechanisms and damage development in high temperature polymer matrix composites under various environmental and loading conditions. The aging induced volumetric shrinkage was measured and a model was proposed capable of predicting aging under any temperature history. In the case of monotonically loaded laminates a unique and simple general relationship was developed between applied load and crack density independent of lamination geometry and temperature and accounting for statistical variability. Under fatigue conditions a master curve was developed relating damage (crack density) and fatigue cycles, independent of layup and temperature.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2001
Accession Number
ADA394573

Entities

People

  • Isaac M. Daniel
  • Jyi-jiin Luo
  • Zuo Sun

Organizations

  • Northwestern University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Composite Materials
  • Failure Mode And Effect Analysis
  • Fiber Reinforced Polymers
  • High Temperature
  • Laminates
  • Material Degradation Processes
  • Materials
  • Materials Science
  • Materials Testing
  • Mechanics
  • Micromechanics
  • Polymer Matrix Composites
  • Reinforced Plastics
  • Stress Strain Relations

Fields of Study

  • Materials science

Readers

  • Computational Modeling and Simulation
  • Materials Science (Mechanical Engineering).
  • Thermal Physics or Thermal Science.