...Jonathan Parker Creep Fatigue knowledge is necessary for meaningful reliability assessment of existing power generating plant because cyclic operation of an aging power plant fleet requires better understanding of factors affecting damage initiation and propagation, as well as technologies...

... Prediction of Crack Growth Based on Creep/Fatigue Damage Accumulation Mechanism ABSTRACT: In this paper a deterministic creep/fatigue accumulation model from simple sequential and repetitive creep and fatigue crack growth mechanisms for creep-brittle materials is developed. In the model the maximum stress...

... method is proposed to predict damage accumulation and fatigue life of polymers under cyclic loading conditions in the presence of creep. The study provides a basis for ongoing research initiatives at the National Aeronautics and Space Administration Kennedy Space Center in the pursuit of new technologies...

...Rami H. Haddad; Abeer T. Andrawes An experimental study was undertaken to investigate the potential of using steel fibers in controlling expansion and reducing damage of concrete under cyclic treatment in a sulfate solution. Cylindrical (100 × 200 mm) and prism (70 × 70 × 300 mm) concrete specimens...

...E Altus In its initial evolution stage, fatigue damage consists of many microdamage sites, having random sizes and locations. The way in which these sites grow and coalesce has a crucial effect on the macro fatigue life. A statistical micromechanic fatigue model has been developed, in which...

... computed and compared. Moreover, computed results are compared with experimental results. Throughout the studies, the effect of tube spring back and the effect of design parameters on the deformation behavior are demonstrated. KEYWORDS: zircaloy tube, cold pilgering, damage, surface defects, tool design...