Coupled anisothermal chemomechanical degradation solutions in one dimension

M. Anguiano, H. Gajendran, R. B. Hall, Arif Masud

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper focuses on thermal oxidation of Silicon Carbide (SiC) – a key process of degradation in aircraft turbine components. In this work, passive oxidation is considered, which produces amorphous silica that is accumulated on top of the SiC substrate. The mathematical problem is formulated within the context of mixture theory (Gardiner G (2017) Aeroengine composites, Part 1: the CMC invasion. Composites World 31 July 2015: n. pag. Web. 06 Mar; Jacobson, J Am Ceram Soc 76(1):3–28, 1993), which allows to model multi-constituent behavior – fluid and solid in this case – within the same continuum domain, while retaining interaction terms between constituents. Preliminary isothermal results have shown that the phenomena of interest are captured: expansion due to chemical reaction, change in solid density from unreacted to fully-oxidized material, interactive force among constituents, and stress variation across reaction zone. The method presented considers the anisothermal evolution of the problem.

Original languageEnglish (US)
Title of host publicationChallenges in Mechanics of Time Dependent Materials - Proceedings of the 2017 Annual Conference on Experimental and Applied Mechanics
EditorsMeredith Silberstein, Alex Arzoumanidis, Alireza Amirkhizi
PublisherSpringer New York LLC
Pages5-9
Number of pages5
ISBN (Print)9783319633923
DOIs
StatePublished - Jan 1 2018
EventAnnual Conference and Exposition on Experimental and Applied Mechanics, 2017 - Indianapolis, United States
Duration: Jun 12 2017Jun 15 2017

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
Volume2
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Other

OtherAnnual Conference and Exposition on Experimental and Applied Mechanics, 2017
CountryUnited States
CityIndianapolis
Period6/12/176/15/17

Keywords

  • Anisothermal
  • Ceramic matrix composite
  • Passive oxidation
  • Silicon Carbide

ASJC Scopus subject areas

  • Engineering(all)
  • Computational Mechanics
  • Mechanical Engineering

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