Noise reduction for fatigue crack growth test data under random loading

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The noise included in electrical signal significantly influences on the estimating results of crack length and crack opening point. The noise can be effectively reduced by averaging some consecutive loading cycles without distortion of the signal for constant amplitude loading tests, whereas the averaging technique cannot be applied to random loading tests due to the variation of load. In this study, a noise reduction technique was developed by using a load-based averaging technique, which can be applied to fatigue crack growth test data under random loading. Additionally, the developed noise reduction method was applied to random loading test data to verify the effectiveness of the method. (C) 2008 Elsevier B.V. All rights reserved.
Publisher
Elsevier Science Sa
Issue Date
2009-04
Language
English
Article Type
Article
Keywords

BEHAVIOR; CLOSURE

Citation

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.505, no.1-2, pp.163 - 168

ISSN
0921-5093
DOI
10.1016/j.msea.2008.11.005
URI
http://hdl.handle.net/10203/93464
Appears in Collection
ME-Journal Papers(저널논문)
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