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Statistical analysis of the influence of microstructure on damage in fibrous ceramic matrix composites
Author(s) -
Tracy Jared,
Daly Samantha
Publication year - 2017
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12646
Subject(s) - materials science , composite material , microstructure , coating , transverse plane , fiber , ceramic matrix composite , matrix (chemical analysis) , ceramic , dispersion (optics) , protein filament , cracking , structural engineering , physics , optics , engineering
The effect of microstructure on cracking was analyzed in a CMC using statistical methods. It was determined that the amounts of coating surrounding fibers and their dispersion within the matrix influenced where cracks evolved in transverse plies. Linear models predicted that maximum principal strains in transverse fiber coatings increased as (i) the fiber coating area increased and (ii) the length of matrix ligament between fibers decreased. Logistic models indicated that the likelihood of transverse fibers residing on a matrix crack increased as the (i) ratio of coating to filament decreased, (ii) distance between fibers decreased, or (iii) coating area increased.