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Structural Reliability Analysis of Laminated CMC Components PUBLIC ACCESS

[+] Author Affiliations
Stephen F. Duffy, Joseph L. Palko

Cleveland State University, Cleveland, OH

John P. Gyekenyesi

National Aeronautics and Space Administration, Cleveland, OH

Paper No. 91-GT-210, pp. V005T13A013; 8 pages
doi:10.1115/91-GT-210
From:
  • ASME 1991 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General
  • Orlando, Florida, USA, June 3–6, 1991
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7902-3
  • Copyright © 1991 by ASME

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 © 1991 by ASME
This article is only available in the PDF format.

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