.... fatigue initiation fatigue damage medical wire CRM device failure CRM wire fatigue prediction high cycle fatigue Jeremy E. Schaffer1 ASTM Special Technical Publication, Vol. 5, No. 7 Paper ID JAI101567 Available online at www.astm.org An Examination of Fatigue Initiation Mechanisms in Thin 35Co...

... 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 Journal of ASTM International, September2004...

... cycle fatigue damage accumulation multiaxial loading fatigue crack nucleation variable amplitude loading tests fatigue life prediction Journal of ASTM International, October 2004, Vol. 1, No. 9 Paper ID JAI19047 Available online at www.astmorg Franck MorelI and Narayanaswami Ranganathan2 High...

..., 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 random loading Journal ofASTM...

... The high cycle fatigue (HCF) crack growth threshold of Ti-6Al-4V is investigated when naturally initiated small surface cracks of depths c = 16 μm to 370 μm are present. Small surface cracks are initiated in notched specimens using two different LCF loading histories, R = 0.1 and R = -1.0...

... An investigation was undertaken to evaluate the effects of mean stress on the high cycle fatigue (HCF) limit stress under uniaxial loading. Tests were conducted at constant values of stress ratio, R (ratio of minimum to maximum stress), at frequencies from 20 to 70 Hz up to 10 7 cycles using...

.... Fractography was used to characterize the nature of fretting damage. Results indicate that no degradation in fatigue limit is observed when the material is subjected to up to 10 percent of fretting fatigue life. fretting fatigue high cycle fatigue Ti-6Al-4V flat-on-flat contact fatigue damage...

... The high cycle fatigue (HCF) resistance of Ti-6Al-4V for gas turbine engine pplications is studied when the material is first subjected to low cycle fatigue (LCF). The high cycle fatigue (HCF) threshold is determined after small LCF surface cracks are formed in notch tension specimens. LCF...

... using the rapid testing technique. high cycle fatigue test methods Haigh diagram titanium fatigue limit Ti-6A1-4V David C Maxwell1and Theodore Nicholas2 A RAPID METHOD FOR GENERATION OF A HAIGH DIAGRAM FOR HIGH CYCLE FATIGUE REFERENCE: Maxwell, D. C. and Nicholas, T., "A Rapid Method...

... an increasingly influential role as the crack tip approaches the first grain boundary. crystal plasticity high cycle fatigue microstructure small cracks mixed mode Valerie Bennett 1 and David L. McDowell t Polycrystal Orientation Effects on Microslip and Mixed-Mode Behavior of Microstructurally Small...

... cycle fatigue research. fatigue (materials) multiaxial fatigue biaxial fatigue low cycle fatigue high cycle fatigue life prediction G. E. Leese^ Engineering Significance of Recent IVIultiaxial Research REFERENCE: Leese, G. E., "Engineering Significance of Recent Moltiaxial Research," Low...

... the crack growth rates in mixed fatigue. low cycle fatigue high cycle fatigue mixed fatigue crack initiation crack propagation titanium base alloy nickel base alloy life prediction J.-Y. Guedou^ andJ.-M. Rongvaux^ Effect of Superimposed Stresses at High Frequency on Low Cycle Fatigue...

... progressively. The variation of fatigue life was ascribed to the occurrence of some considerable interactions between creep, high-cycle fatigue (HCF), LCF, and environmental effect under different values of Q at elevated temperature, and the change of damage mechanism of the material. The total LCF life...

... counting technique and linear damage rule predicted fatigue lives within a factor of two of actual test results. In addition, the predicted lives were generally conservative. fatigue (materials) torsional fatigue low cycle fatigue high cycle fatigue damage accumulation notch fatigue Roy...