منابع مشابه
Comparison of Fatigue Properties and Fatigue Crack Growth Rates of Various Implantable Metals
The fatigue strength, effects of a notch on the fatigue strength, and fatigue crack growth rate of Ti-15Zr-4Nb-4Ta alloy were compared with those of other implantable metals. Zr, Nb, and Ta are important alloying elements for Ti alloys for attaining superior long-term corrosion resistance and biocompatibility. The highly biocompatible Ti-15Zr-4Nb-4Ta alloy exhibited an excellent balance between...
متن کاملFatigue Crack Growth Rates in Equine Cortical Bone
INTRODUCTION Stress fractures are common in athletes, military recruits, and Thoroughbred racehorses, and may occur as hip fractures in the elderly. All of these injuries, to some extent, depend upon the propagation of fatigue cracks. Therefore, it is important to characterize the rates at which fatigue cracks grow and how microstructural differences found in cortical bone influence the crack g...
متن کاملFatigue Crack Growth in Adhesive Joints
Adhesive joining is recognized as a potential enabling technology for a variety of material systems being considered in automotive structures where traditional fastening methods would be inappropriate. Well known examples include fiber reinforced composites and polymers. Additionally in certain circumstances, adhesive bonding of steel structures can provide benefits such as improved stiffness a...
متن کاملThermal activation of fatigue crack growth: analysing the mechanisms of fatigue crack propagation in superalloys
A method for deriving apparent activation energies, Eapp, for fatigue crack growth (FCG) is presented. It is shown how these Eapp values can be used to analyse the main underlying mechanism causing the progression of the crack. The Eapp values for fatigue crack growth in air and vacuum, and with and without a dwell are obtained for a range of Ni based superalloys for turbine disc applications. ...
متن کاملMechanisms of Fatigue Crack Propagation in Metals, Ceramics and Composites: Role of Crack Tip Shielding*
Crack tip shielding phenomena, whereby the "effective crack-driving force" actually experienced at the crack tip is locally reduced, are examined with reference to fatigue crack propagation behavior in metals, composites and ceramics. Sources of shielding are briefly described in terms of mechanisms relying on the production of elastically constrained zones which envelop the crack (zone shieldi...
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ژورنال
عنوان ژورنال: Doboku Gakkai Ronbunshu
سال: 1984
ISSN: 0289-7806,1882-7187
DOI: 10.2208/jscej.1984.377