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Factors determining fatigue in the chronic fatigue syndrome: a path analysis
Acta Clinica Belgica, 2016To explore the interrelationship of different dimensions (fatigue, neuroticism, sleep quality, global mental and physical health) in patients with chronic fatigue syndrome (CFS).Patients meeting the Fukuda criteria of CFS filled out two independent fatigue scales (Fatigue Questionnaire, FQ and Checklist Individual Strength, CIS), NEO-Five Factor ...
Els, Tobback +5 more
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A Hybrid Fatigue Analysis Method for Fatigue Monitor System
Volume 8: Operations, Applications, and Components, 2020Abstract During the operation of nuclear power plants (NPPs), the thermal fatigue is one of the most severe aging factors for the components. Therefore, it is significant to monitor the fatigue degradation of components caused by the thermal variation.
Xiaoming Bai +5 more
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2011
Solder low-cycle fatigue damage caused by temperature changes is one major reliability concern in electronics. In the paper, two fundamental approaches to characterize the solder joint fatigue resistance are introduced: testing and theoretical modelling. Thermal test cycling, which is applied to the majority of electronic products, is discussed in more
Rainer Dudek, Ellen Auerswald
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Solder low-cycle fatigue damage caused by temperature changes is one major reliability concern in electronics. In the paper, two fundamental approaches to characterize the solder joint fatigue resistance are introduced: testing and theoretical modelling. Thermal test cycling, which is applied to the majority of electronic products, is discussed in more
Rainer Dudek, Ellen Auerswald
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Contact Fatigue Tests and Contact Fatigue Life Analysis
SAE Technical Paper Series, 2005<div class="htmlview paragraph">The main objective of this paper is to investigate contact fatigue life models and to evaluate the effect of surface finish on contact fatigue life. The effect of surface finish on contact fatigue life was investigated experimentally using two roller contact fatigue tests. The test samples, i.e.
Hong Lin +3 more
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Probabilistic Fatigue Analysis
1995Fatigue is one of the most important failure modes to be considered in mechanical and structural design. It has been stated that fatigue accounts for more than 80% of all observed service failures in mechanical and structural systems. Moreover, fatigue and fracture failures are often catastrophic; they may come without warning and may cause significant
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Fundamentals of Fatigue Analysis
SAE Technical Paper Series, 1982<div class="htmlview paragraph">An overview of the basic concepts involved in performing a fatigue analysis is presented as an introduction to a series of specialized papers dealing with the development of fatigue information and its use in engineering design.
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Analysis of muscle fatigue in helicopter pilots
Applied Ergonomics, 2011Helicopter pilots espouse ergonomically unfavourable postures and endure vibration which result in low back pain. The objective of this study was to investigate the effects of a helicopter flight on pilots back and shoulder muscles using surface Electromyography (sEMG) analysis.
Venkatesh, Balasubramanian +2 more
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Fatigue and Inelastic Analysis
1988Evaluation of fatigue damage necessitates calculation of the strain range. Current design rules provide realistic evaluations in the absence of elastic follow-up but very conservative evaluations when shakedown is not obtained. It is proposed to include spring effect in the strain range calculations using elastic analysis to reduce the need for ...
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