Author : NM. Abuelfoutouh
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (125 download)
Book Synopsis Evaluation of the Effect of Creep and Mean Stress on Fatigue Life Using a Damage Mechanics Approach by : NM. Abuelfoutouh
Download or read book Evaluation of the Effect of Creep and Mean Stress on Fatigue Life Using a Damage Mechanics Approach written by NM. Abuelfoutouh and published by . This book was released on 1992 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method for fatigue life prediction of high temperature polycrystalline materials under high rate fully reversed strain cycles (HRSC) was previously derived using a continuum damage mechanics approach. The method is generalized in this paper to predict the fatigue life of balanced cyclic creep rupture (BCCR), tensile cyclic creep rupture (TCCR), and compressive cyclic creep rupture (CCCR). It is assumed that creep deformation mechanisms dominate during the creep portion of the fatigue cycle and that plasticity mechanisms dominate during the plastic portion of the cycle. The interaction of plasticity and creep with the mean applied stress and the effect of this interaction on the fatigue life are investigated. A sample calculation is applied to René 80 at 1255 K (1800°F).