Monotonic and Fatigue Behavior of 2-D Woven Ceramic Matrix Composite at Room and Elevated Temperatures (Blackglas/Nextel 312)

Abstract

This study investigated the monotonic tension and compression and the tension-tension and tension-compression fatigue loading of Blackglas/Nextel 312 woven CMC at room temperature and at 760 degrees centigrade. Young's Modulus and strain variation were evaluated. S-N curves were obtained for room and elevated temperatures. The ultimate tensile stress was lower at the elevated temperature and it was higher in the compression test. Failure-strain was higher at the elevated temperature in both tension and compression tests. There was no significant change in Young's Modulus at the elevated temperature. Also, there was no difference in the number of cycles to failure at the elevated temperature between tension-tension and tension-compression fatigue loading. Microscopic examination was performed to characterize damage mechanisms.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1998
Accession Number
ADA353787

Entities

People

  • Musa Al-hussein

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Axial Loads
  • Ceramic Matrix Composites
  • Composite Materials
  • Elastic Properties
  • Failure Mode And Effect Analysis
  • Fatigue Tests (Mechanics)
  • Materials
  • Materials Science
  • Materials Testing
  • Mechanical Properties
  • Mechanical Working
  • Modulus Of Elasticity
  • Stress Strain Relations
  • Stresses
  • Tensile Properties
  • Turbines

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Reinforced Composite Materials
  • Thermal Physics or Thermal Science.