Open AccessStructural Reliability Analysis of Laminated CMC Components
Author(s) -
Stephen F. Duffy,
Joseph L. Palko,
John P. Gyekenyesi
Publication year - 1991
Publication title -
volume 5: manufacturing materials and metallurgy; ceramics; structures and dynamics; controls, diagnostics and instrumentation; education; igti scholar award; general
Language(s) - English
Resource type - Conference proceedings
DOI - 10.1115/91-gt-210
Subject(s) - weibull distribution , reliability (semiconductor) , aerospace , reliability engineering , finite element method , component (thermodynamics) , computer science , materials science , structural reliability , cracking , structural engineering , engineering , composite material , mathematics , probabilistic logic , power (physics) , statistics , physics , quantum mechanics , artificial intelligence , thermodynamics , aerospace engineering
For laminated ceramic matrix composite (CMC) materials to realize their full potential in aerospace applications, design methods and protocols are a necessity. The time independent failure response of these materials is focussed on and a reliability analysis is presented associated with the initiation of matrix cracking. A public domain computer algorithm is highlighted that was coupled with the laminate analysis of a finite element code and which serves as a design aid to analyze structural components made from laminated CMC materials. Issues relevant to the effect of the size of the component are discussed, and a parameter estimation procedure is presented. The estimation procedure allows three parameters to be calculated from a failure population that has an underlying Weibull distribution.
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