... is carefully presented, predictions are compared, and input data are discussed. It is shown that it is necessary to take account for the stress distribution around the defect in order to have a good prediction for a multiaxial case. KEYWORDS: high cycle fatigue, defect, multiaxial fatigue, small notch, mean...

..., CRM device failure, CRM wire, fatigue prediction, high cycle fatigue Introduction Fatigue damage is a stochastic process resulting in a high level of unpredictability, even in a laboratory controlled environment. In materials used in implantable medical devices, it is critical to understand variables...

...RJ Morrissey, PhD; PJ Golden, PhD The objective of this research was to investigate the high cycle fatigue behavior of a titanium alloy using an ultrasonic fatigue system. Fatigue testing up to one billion cycles under fully reversed loading conditions was performed to determine the ultra-high...

...PJ Golden; T Nicholas The objective of this research was to measure the load history effects of negative stress ratio loading on the high cycle fatigue (HCF) crack growth threshold of Ti-6Al-4V. Previous work has shown an increase in the HCF threshold that is dependent on the K max during the low...

... 04 2002 17 07 2003 04 10 2004 high cycle fatigue damage accumulation multiaxial loading fatigue crack nucleation variable amplitude loading tests fatigue life prediction 2002-05-29 - 2002-05-31 Fatigue Testing and Analysis Under Variable Amplitude Loading Conditions...

.... Most model parameters are derived from constant amplitude S-N curves and the Haigh diagram, but two sets of long life variable amplitude tests are needed to derive the variable amplitude interaction parameters. nodular cast iron variable amplitude fatigue high cycle fatigue crack closure...

... coefficients were generated, and the lifetime was calculated. It has been observed that both methods of fatigue life determination give almost the same results. life time biaxial stress spectral method strain energy density parameter non-proportional loading high cycle fatigue rain flow algorithm...