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Finite Element Analysis (FEA) Implementation of Thermal Barrier Coating (TBC) Lifetime Prediction Methods

Mohamed, Hassan (2013) Finite Element Analysis (FEA) Implementation of Thermal Barrier Coating (TBC) Lifetime Prediction Methods. Master's Thesis, University of Pittsburgh. (Unpublished)

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Abstract

Thermal Barrier Coatings (TBC) is one of the most important insulation components of an advanced turbine. It is expected to operate at temperature conditions as high as 1760oC. The main objective of this work is to investigate four available methods in predicting the lifespan of the TBC layer and its practicality in finite element analysis (FEA) computation. The four methods discussed are TGO Thickness Calculation, Elasticity and Creep Effect Analysis, A Coupled Oxidation Constitutive Approach and Fracture Mechanics Method. The predicted results obtained are compared with experimental data provided by Limarga [10]. The implementations of TGO Thickness Calculation as well as Elasticity and Creep Effect Analysis in finite element computation have shown a promising result such as local von Mises stress distribution on each layer in TBC (top coat, TGO and bond coat). This simulation result can provide a good comparison data for future experimental work.

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Details

Item Type: University of Pittsburgh ETD
Status: Unpublished
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Mohamed, Hassanham43@pitt.eduHAM43
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairSlaughter, William S.wss@pitt.edu WSS
Committee MemberRobertson, Anne M.rbertson@pitt.eduRBERTSON
Committee MemberSmolinski, Patrick patsmol@pitt.eduPATSMOL
Thesis AdvisorSlaughter, William S.wss@pitt.edu WSS
Date: 27 June 2013
Date Type: Publication
Defense Date: 20 December 2012
Approval Date: 27 June 2013
Submission Date: 12 March 2013
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Number of Pages: 63
Institution: University of Pittsburgh
Schools and Programs: Swanson School of Engineering > Mechanical Engineering
Degree: MS - Master of Science
Thesis Type: Master's Thesis
Refereed: Yes
Uncontrolled Keywords: thermal barrier coating
Date Deposited: 27 Jun 2013 17:26
Last Modified: 15 Nov 2016 14:10
URI: http://d-scholarship.pitt.edu/id/eprint/17987

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  • Finite Element Analysis (FEA) Implementation of Thermal Barrier Coating (TBC) Lifetime Prediction Methods. (deposited 27 Jun 2013 17:26) [Currently Displayed]

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