Accelerated life consumption due to thermo-acoustic oscillations in gas turbines: XFEM & Crack

A.C. Altunlu, Peter van der Hoogt, Andries de Boer

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

10 Downloads (Pure)

Abstract

The combustion instability phenomenon in the gas turbine engines brings out elevated vibrations under high temperature levels. The present work addresses the projection of a life assessment methodology applied in a laboratory-scaled generic combustor onto the typical gas turbine engine combustor section in terms of crack and its evaluation. A temperature-structural analysis based on the combustion experiments was utilized to obtain the crack initiation region. Sequentially coupled extended finite element method (XFEM) based fracture mechanics analysis was performed to characterize the crack-tip near fields in a typical combustor nickel-based superalloy.
Original languageEnglish
Title of host publicationProceedings of the 28th Congress of the International Council of the Aeronautical Sciences (ICAS 2012)
EditorsI Grant
Place of PublicationBrisbane, Australia
PublisherInternational Council of the Aeronautical Sciences (ICAS)
Pages4.2.2-
Number of pages10
ISBN (Print)978-0-9565333-1-9
Publication statusPublished - 23 Sep 2012
Event28th Congress of the International Council of the Aeronautical Sciences, ICAS 2012 - Brisbane, Australia
Duration: 23 Sep 201228 Sep 2012
Conference number: 28

Conference

Conference28th Congress of the International Council of the Aeronautical Sciences, ICAS 2012
Abbreviated titleICAS
CountryAustralia
CityBrisbane
Period23/09/1228/09/12

Fingerprint

Combustors
Gas turbines
Acoustics
Cracks
Turbines
Superalloys
Crack initiation
Fracture mechanics
Structural analysis
Crack tips
Nickel
Finite element method
Temperature
Experiments

Keywords

  • IR-81141
  • METIS-287679

Cite this

Altunlu, A. C., van der Hoogt, P., & de Boer, A. (2012). Accelerated life consumption due to thermo-acoustic oscillations in gas turbines: XFEM & Crack. In I. Grant (Ed.), Proceedings of the 28th Congress of the International Council of the Aeronautical Sciences (ICAS 2012) (pp. 4.2.2-). Brisbane, Australia: International Council of the Aeronautical Sciences (ICAS).
Altunlu, A.C. ; van der Hoogt, Peter ; de Boer, Andries. / Accelerated life consumption due to thermo-acoustic oscillations in gas turbines: XFEM & Crack. Proceedings of the 28th Congress of the International Council of the Aeronautical Sciences (ICAS 2012). editor / I Grant. Brisbane, Australia : International Council of the Aeronautical Sciences (ICAS), 2012. pp. 4.2.2-
@inproceedings{c8a60cb0e68b4118ae509fbc26587470,
title = "Accelerated life consumption due to thermo-acoustic oscillations in gas turbines: XFEM & Crack",
abstract = "The combustion instability phenomenon in the gas turbine engines brings out elevated vibrations under high temperature levels. The present work addresses the projection of a life assessment methodology applied in a laboratory-scaled generic combustor onto the typical gas turbine engine combustor section in terms of crack and its evaluation. A temperature-structural analysis based on the combustion experiments was utilized to obtain the crack initiation region. Sequentially coupled extended finite element method (XFEM) based fracture mechanics analysis was performed to characterize the crack-tip near fields in a typical combustor nickel-based superalloy.",
keywords = "IR-81141, METIS-287679",
author = "A.C. Altunlu and {van der Hoogt}, Peter and {de Boer}, Andries",
year = "2012",
month = "9",
day = "23",
language = "English",
isbn = "978-0-9565333-1-9",
pages = "4.2.2--",
editor = "I Grant",
booktitle = "Proceedings of the 28th Congress of the International Council of the Aeronautical Sciences (ICAS 2012)",
publisher = "International Council of the Aeronautical Sciences (ICAS)",

}

Altunlu, AC, van der Hoogt, P & de Boer, A 2012, Accelerated life consumption due to thermo-acoustic oscillations in gas turbines: XFEM & Crack. in I Grant (ed.), Proceedings of the 28th Congress of the International Council of the Aeronautical Sciences (ICAS 2012). International Council of the Aeronautical Sciences (ICAS), Brisbane, Australia, pp. 4.2.2-, 28th Congress of the International Council of the Aeronautical Sciences, ICAS 2012, Brisbane, Australia, 23/09/12.

Accelerated life consumption due to thermo-acoustic oscillations in gas turbines: XFEM & Crack. / Altunlu, A.C.; van der Hoogt, Peter; de Boer, Andries.

Proceedings of the 28th Congress of the International Council of the Aeronautical Sciences (ICAS 2012). ed. / I Grant. Brisbane, Australia : International Council of the Aeronautical Sciences (ICAS), 2012. p. 4.2.2-.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

TY - GEN

T1 - Accelerated life consumption due to thermo-acoustic oscillations in gas turbines: XFEM & Crack

AU - Altunlu, A.C.

AU - van der Hoogt, Peter

AU - de Boer, Andries

PY - 2012/9/23

Y1 - 2012/9/23

N2 - The combustion instability phenomenon in the gas turbine engines brings out elevated vibrations under high temperature levels. The present work addresses the projection of a life assessment methodology applied in a laboratory-scaled generic combustor onto the typical gas turbine engine combustor section in terms of crack and its evaluation. A temperature-structural analysis based on the combustion experiments was utilized to obtain the crack initiation region. Sequentially coupled extended finite element method (XFEM) based fracture mechanics analysis was performed to characterize the crack-tip near fields in a typical combustor nickel-based superalloy.

AB - The combustion instability phenomenon in the gas turbine engines brings out elevated vibrations under high temperature levels. The present work addresses the projection of a life assessment methodology applied in a laboratory-scaled generic combustor onto the typical gas turbine engine combustor section in terms of crack and its evaluation. A temperature-structural analysis based on the combustion experiments was utilized to obtain the crack initiation region. Sequentially coupled extended finite element method (XFEM) based fracture mechanics analysis was performed to characterize the crack-tip near fields in a typical combustor nickel-based superalloy.

KW - IR-81141

KW - METIS-287679

M3 - Conference contribution

SN - 978-0-9565333-1-9

SP - 4.2.2-

BT - Proceedings of the 28th Congress of the International Council of the Aeronautical Sciences (ICAS 2012)

A2 - Grant, I

PB - International Council of the Aeronautical Sciences (ICAS)

CY - Brisbane, Australia

ER -

Altunlu AC, van der Hoogt P, de Boer A. Accelerated life consumption due to thermo-acoustic oscillations in gas turbines: XFEM & Crack. In Grant I, editor, Proceedings of the 28th Congress of the International Council of the Aeronautical Sciences (ICAS 2012). Brisbane, Australia: International Council of the Aeronautical Sciences (ICAS). 2012. p. 4.2.2-