Review of VHCF studies, short crack models and theory of vibrations
(English)Manuscript (preprint) (Other academic)
This literature review loosely connects different concepts of very high cycle fatigue which are of significance within the scope of this thesis work. The ultrasonic fatigue testing equipment and its basic principle of operation is discussed in detail. The phenomenon of damping in the light of theory of vibrations is outlined. The significance of the understanding of damping phenomenon in the ultrasonic fatigue testing is highlighted. On the other hand, SN fatigue data obtained by several researchers for different materials are reviewed. In addition, the fundamental mechanisms responsible for fatigue crack initiation are also summarized.
Considerable attention is focussed on the mathematical models developed for the prediction of growth behaviour of short fatigue cracks. The basic concepts, and models, which led to the development of the distributed dislocation dipole technique, have also been reviewed.
Very cycle high fatigue, crack initiation, short cracks, vibration, damping
Other Materials Engineering
IdentifiersURN: urn:nbn:se:kau:diva-34634OAI: oai:DiVA.org:kau-34634DiVA: diva2:765148
ProjectsVery high cycle fatigue of stainless steels - an unknown life