Extending the Fatigue Life of Aircraft Engine Components by Hole Cold Expansion TechnologySource: Journal of Engineering for Gas Turbines and Power:;1993:;volume( 115 ):;issue: 001::page 165Author:A. C. Rufin
DOI: 10.1115/1.2906672Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The split-sleeve cold expansion process has been used successfully for over 20 years to extend the fatigue life of holes in aircraft structures. Cold expansion technology can also be applied to enhance engine low-cycle fatigue (LCF) performance in both production and repair applications. Specific test data are presented showing that fatigue life extension can be attained by cold expansion of holes in a wide range of situations (including nonround hole geometries and low edge margins), and in components subjected to high operating temperatures. A cold expanded bushing system is compared to standard shrink-fit bushing installations. Finally, two case studies are used to illustrate the application of cold expansion to full-scale engine components.
keyword(s): Fatigue life , Aircraft engines , Engines , Bushings , Aircraft , Low cycle fatigue , Operating temperature AND Maintenance ,
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contributor author | A. C. Rufin | |
date accessioned | 2017-05-08T23:41:24Z | |
date available | 2017-05-08T23:41:24Z | |
date copyright | January, 1993 | |
date issued | 1993 | |
identifier issn | 1528-8919 | |
identifier other | JETPEZ-26712#165_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/111978 | |
description abstract | The split-sleeve cold expansion process has been used successfully for over 20 years to extend the fatigue life of holes in aircraft structures. Cold expansion technology can also be applied to enhance engine low-cycle fatigue (LCF) performance in both production and repair applications. Specific test data are presented showing that fatigue life extension can be attained by cold expansion of holes in a wide range of situations (including nonround hole geometries and low edge margins), and in components subjected to high operating temperatures. A cold expanded bushing system is compared to standard shrink-fit bushing installations. Finally, two case studies are used to illustrate the application of cold expansion to full-scale engine components. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Extending the Fatigue Life of Aircraft Engine Components by Hole Cold Expansion Technology | |
type | Journal Paper | |
journal volume | 115 | |
journal issue | 1 | |
journal title | Journal of Engineering for Gas Turbines and Power | |
identifier doi | 10.1115/1.2906672 | |
journal fristpage | 165 | |
journal lastpage | 171 | |
identifier eissn | 0742-4795 | |
keywords | Fatigue life | |
keywords | Aircraft engines | |
keywords | Engines | |
keywords | Bushings | |
keywords | Aircraft | |
keywords | Low cycle fatigue | |
keywords | Operating temperature AND Maintenance | |
tree | Journal of Engineering for Gas Turbines and Power:;1993:;volume( 115 ):;issue: 001 | |
contenttype | Fulltext |