Accession Number : ADA289250

Title :   Fatigue Behavior of a Cross-Ply Ceramic Matrix Composite at Elevated Temperature Under Tension-Tension Loading.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Steiner, Craig D.

PDF Url : ADA289250

Report Date : DEC 1994

Pagination or Media Count : 149

Abstract : This study investigated the fatigue behavior and damage mechanisms of a (0/90)4s SiC/MAS ceramic matrix composite under tension-tension loading at two elevated temperatures and two frequencies. Stress and strain hystereses, maximum and minimum strain, and modulus of elasticity were evaluated to characterize the material behavior. Microscopy and fractography were used to evaluate damage progression and mechanisms. Fatigue life was independent of frequency at both temperatures.

Descriptors :   *CERAMIC MATRIX COMPOSITES, *CERAMIC MATERIALS, *FATIGUE(MECHANICS), STRESS STRAIN RELATIONS, FATIGUE LIFE, DEGRADATION, TEMPERATURE, TENSILE STRESS, CRACKING(FRACTURING), FIBER REINFORCED COMPOSITES, MODULUS OF ELASTICITY, THESES, GLASS, STRENGTH(MECHANICS), FRACTURE(MECHANICS), FAILURE(MECHANICS), SILICON CARBIDES, STATIC TESTS, FATIGUE TESTS(MECHANICS), POTASSIUM COMPOUNDS.

Subject Categories : Ceramics, Refractories and Glass
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE