Mechanical relaxation of localized residual stresses associated with foreign object damage
نویسندگان
چکیده
منابع مشابه
Mechanical relaxation of localized residual stresses associated with foreign object damage
Foreign-object damage associated with the ingestion of debris into aircraft turbine engines can lead to a marked degradation in the high-cycle fatigue (HCF) life of turbine components. This degradation is generally considered to be associated with the premature initiation of fatigue cracks at or near the damage sites; this is suspected to be due to, at least in part, the impact-induced residual...
متن کاملResidual Stresses prediction with a new Thermo Mechanical simulation of Grinding
The grinding process consists of an abrasive contact between a moving workpiece and a wheel in rotation [1]. Because of the grinding power converted into heat at the interface, high temperatures can appear that can lead to thermal, mechanical or metallurgical consequences. Each of these effects has been fully related in literature by authors. Guo presents a good review of surface layers (dark, ...
متن کاملCumulative Damage in Fatigue with Particular Reference to the Effects of Residual Stresses by
In this Report factors affecting the accuracy of Miner's Rule are dls-cussed. An nvestlgation 1s also described of the cumulative damage behaviour of DID 5014 alumlnlun alloy lug specuwns using random loading. It 1s concluded that the devlatlons from Miner's Rule observed in the uxestlgation can be ascribed manly to the actlon of residual stresses associated with yielding at tllf point of fatzg...
متن کاملLoad Deflection Analysis for Determining Mechanical Properties of Thin Films with Tensile and Compressive Residual Stresses
An examination of load deflection (bulge) testing of coated and uncoated membranes by analytical and finite element methods was undertaken. The key parameters in the loaddeflection behavior of a membrane were non-dimensionalized and examined to illustrate how to design test structures for materials systems of interest. Experimental and modelling procedures were examined to improve measurement o...
متن کاملResidual stresses and mechanical properties of Si3N4/SiC multilayered composites with different SiC layers
The effect of residual stresses on the strength, toughness and work of fracture of Si3N4/SiC multilayered composites with different SiC layers has been investigated. It may be an effective way to design and optimize the mechanical properties of Si3N4/SiC multilayered composites by controlling the properties of SiC layers. Si3N4/SiC multilayered composites with different SiC layers were fabricat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Materials Science and Engineering: A
سال: 2003
ISSN: 0921-5093
DOI: 10.1016/s0921-5093(02)00543-9