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RESEARCH PAPERS

Structural Reliability Analysis of Laminated CMC Components

[+] Author and Article Information
S. F. Duffy, J. L. Palko

Cleveland State University, Department of Civil Engineering, Cleveland, OH 44115

J. P. Gyekenyesi

NASA Lewis Research Center, Structural Integrity Branch, Cleveland, OH 44135

J. Eng. Gas Turbines Power 115(1), 103-108 (Jan 01, 1993) (6 pages) doi:10.1115/1.2906663 History: Received March 04, 1991; Online April 24, 2008

Abstract

For laminated ceramic matrix composite (CMC) materials to realize their full potential in aerospace applications design, methods and protocols are a necessity. This paper focuses on the time-independent failure response of these materials and presents a reliability analysis associated with the initiation of matrix cracking. It highlights a public domain computer algorithm that has been 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.

Copyright © 1993 by The American Society of Mechanical Engineers
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