Coupled anisothermal chemomechanical degradation solutions in one dimension

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

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


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
Number of pages5
ISBN (Print)9783319633923
StatePublished - 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
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652


OtherAnnual Conference and Exposition on Experimental and Applied Mechanics, 2017
Country/TerritoryUnited States


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

ASJC Scopus subject areas

  • General Engineering
  • Computational Mechanics
  • Mechanical Engineering


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