Fatigue life and plastic deformation behavior of electrodeposited copper thin film under variable amplitude loading

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As an exploratory study to investigate fatigue behavior of an elecrodeposited copper thin film under variable amplitude loading, repeated two-block loading tests were performed for various loading conditions. Plastic deformation behavior was continuously measured during the tests. Due to the load interaction effect under repeated two-block loading, fatigue life is significantly reduced. A concept is introduced to evaluate the load interaction effect and successfully utilized to predict fatigue life through simulation of the monotonic plastic strain (ratcheting strain) behavior under repeated two-block loading. Effects of load parameters of repeated two-block loading on fatigue life were also discussed. (C) 2011 Elsevier Ltd. All rights reserved.
Publisher
ELSEVIER SCI LTD
Issue Date
2012-05
Language
English
Article Type
Article
Keywords

TENSILE

Citation

INTERNATIONAL JOURNAL OF FATIGUE, v.38, pp.1 - 6

ISSN
0142-1123
DOI
10.1016/j.ijfatigue.2011.10.008
URI
http://hdl.handle.net/10203/98001
Appears in Collection
ME-Journal Papers(저널논문)
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