Predicting the Reliability of Ceramics Under Transient Loads and Temperatures with CARES/Life

Noel N. Nemeth, Osama M. Jadaan, Tamos Palfi, Eric H. Baker

Research output: Contribution to journalReview articlepeer-review

Abstract

A methodology is shown for predicting the time-dependent reliability of ceramic components against catastrophic rupture when subjected to transient thermomechanical loads (including cyclic loads). The methodology takes into account the changes in material response that can occur with temperature or time (i.e., changing fatigue and Weibull parameters with temperature or time). This capability has been added to the NASA CARES/Life (Ceramic Analysis and Reliability Evaluation of Structures/Life) code. The code has been modified to have the ability to interface with commercially available finite element analysis (FEA) codes executed for transient load histories. Examples are provided to demonstrate the features of the methodology as implemented in the CARES/Life program.
Original languageEnglish
Pages (from-to)128-149
Number of pages22
JournalASTM Special Technical Publication
Volume1
Issue number1450
DOIs
StatePublished - 2004
Externally publishedYes

ASJC Scopus Subject Areas

  • General Engineering

Keywords

  • CARES
  • Ceramics
  • Cyclic
  • Failure
  • Fatigue
  • Reliability
  • Transient
  • Weibull

Disciplines

  • Materials Science and Engineering
  • Other Operations Research, Systems Engineering and Industrial Engineering
  • Structural Engineering

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