Current studies on the fatigue lifetime of ceramics are mostly focused on the relation between the stress amplitude (or maximum stress) and cycles to failure. For a more compliant and plastic ceramic which has a pronounced nonlinear stress-strain relation, the role of plastic strain in the fatigue damage is investigated for the first time in this study using a 12 mol% Ce-TZP. By testing at diff...

The pathophysiology of post-stroke fatigue is poorly understood although it is thought to be a consequence of central nervous system pathophysiology. In this study we investigate the relationship between corticomotor excitability and self-reported nonexercise related fatigue in chronic stroke population. Seventy first-time non-depressed stroke survivors (60.36 12.4 years, 20 females, 56.81 63 m...

A. Vaško, L. Trško, R. Konečná, Faculty of Mechanical Engineering, University of Žilina, Žilina, Slovak Republic The paper shows the influence of charge composition on microstructure, fatigue properties and failure micromechanisms of nodular cast irons. The additive of metallurgical silicon carbide (SiC) in analysed specimens increases the content of ferrite in the matrix, decreases the size of...

SUMMARY The scatter in the fatigue lives of identical simple laboratory specimens, which have been tested under variable amplitude sinusoidal loading, is estimated, using a log-normal distribution of fatigue lives as a basis, from the fatigue test results of a number of experimenters. These estimates of the scatter are analyeed with 8 view to studying the effect of various teat loading paramete...