Rapid determination of fatigue life based on temperature evolution

•We propose a rapid approach based on the temperature evolution to determine high cycle fatigue life.•There is only one parameter in the proposed model and the parameter is material and temperature dependent.•We construct a temperature measurement system based upon high-precision semiconductor tempe...

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Bibliographic Details
Published in:International journal of fatigue 2013-09, Vol.54, p.1-6
Main Authors: Zhang, L., Liu, X.S., Wu, S.H., Ma, Z.Q., Fang, H.Y.
Format: Article
Language:English
Subjects:
Aluminium alloys
Applied sciences
Evolution
Exact sciences and technology
Fatigue
Fatigue (materials)
Fatigue life
Fatigue tests
High cycle fatigue
Life prediction
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Real time
Semiconductors
Temperature sensors
Thermographic method
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Summary:•We propose a rapid approach based on the temperature evolution to determine high cycle fatigue life.•There is only one parameter in the proposed model and the parameter is material and temperature dependent.•We construct a temperature measurement system based upon high-precision semiconductor temperature sensors. This paper presents an approach to rapidly predict high cycle fatigue life based on the temperature evolution of a specimen under cyclic loading. The initial slope of the temperature evolution was proved as an indicator for rapid estimation of fatigue life theoretically. Meanwhile, a real-time temperature measurement system based upon high-precision semiconductor temperature sensors was developed to detect the temperature evolution based upon high-precision semiconductor temperature sensors. In order to verify the presented approach, constant-amplitude fatigue tests were carried out on A7N01 aluminium alloy and the welded joints, respectively. The predicted fatigue life based on proposed approach was in good agreement with experimental results.
ISSN:0142-1123
1879-3452
DOI:10.1016/j.ijfatigue.2013.04.002