Fatigue Behavior of a Cross-Ply Ceramic Matrix Composite Subjected to Tension-Tension Cycling with Hold Time.

Abstract

This study was carried out to investigate the elevated temperature behavior of the SiC-MAS5 cross- ply (O/9O)4S ceramic matrix composite manufactured by Corning Inc. to fatigue with loading waveforms that combine the characteristics of stress rupture and high cycle fatigue. The test results were compiled in the form of S-N (cycles to failure), S-T (exposure time versus cycles to failure), S-S (energy exposure versus cycles to failure), normalized modulus degradation, strain progression, and hysteresis loop progression. From the mechanical behavior demonstrated by these curves, relationships between the effect of the environment and loading waveform were developed. In addition, a post-mortem SEM analysis of the fracture surface was conducted and the results compared to the mechanical behavior.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1994
Accession Number
ADA289418

Entities

People

  • Scott A. Grant

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Advanced Materials
  • Air Force
  • Ceramic Matrix Composites
  • Composite Materials
  • Data Acquisition
  • Failure Mode And Effect Analysis
  • High Temperature
  • Load Control
  • Low Temperature
  • Materials
  • Materials Science
  • Mechanics
  • Modulus Of Elasticity
  • Stress Strain Relations
  • Waveforms
  • Waves

Fields of Study

  • Materials science

Readers

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