Results 251 to 260 of about 82,312 (308)
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Monitoring fatigue cracks in gears
NDT & E International, 1991Abstract Vibration analysis is the most common means of gear monitoring and diagnostics. Gear vibration is affected by faults but the signal is usually picked up at the case, where it is also affected by the structural response. An appropriate filtering function is therefore proposed to recover the torsional gear vibration from the case vibration ...
DALPIAZ, Giorgio, MENEGHETTI U.
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The Propagation of Fatigue Cracks
Journal of Applied Mechanics, 1956Abstract A theory of the rate of growth of fatigue cracks is extended to the case of large stresses. Recent measurements of McClintock and Ryan are discussed.
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A fatigue crack growth threshold
Engineering Fracture Mechanics, 1992Abstract Fatigue crack growth (FCG) threshold has been determined on Ti6A14V, Al 7475-T7351, quenched and tempered steel 24CrMo4 as well as on the Ni-base alloys Inconel 617 and Nicrofer 5219 Nb. The main objective of the studies was to prove the transferability of the experimentally determined FCG threshold to service type fatigue loading.
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Determination of Fatigue Crack Paths
International Journal of Bifurcation and Chaos, 1997The complete solution of the problem of a fatigue crack growing from an initial crack includes determination of the crack path. Macroscopic aspects of the main features of the path taken by a growing fatigue crack in a metallic material are reasonably well understood in a qualitative sense.
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SAE Technical Paper Series, 2003
<div class="htmlview paragraph">One thing that is very important in a carmaker company is its know-how built during all its life. Such an experience allows, for instance, to correlate the customer expected product life with accelerated tests procedures.</div> <div class="htmlview paragraph">When it comes to cars, it is usual to have ...
Claudiomar C. Cunha, Fabio P. Martins
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<div class="htmlview paragraph">One thing that is very important in a carmaker company is its know-how built during all its life. Such an experience allows, for instance, to correlate the customer expected product life with accelerated tests procedures.</div> <div class="htmlview paragraph">When it comes to cars, it is usual to have ...
Claudiomar C. Cunha, Fabio P. Martins
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International Journal of Mechanical Sciences, 1977
Abstract The failure of a component or specimen due to a fatigue crack growing from a notch is considered. Previous methods of analysis involving stress and strain concentration factors are shown to be inadequate. By defining equivalent cracks in notched and un-notched situations as cracks with equal growth rates, the concept of notch contribution to
R.A. Smith, K.J. Miller
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Abstract The failure of a component or specimen due to a fatigue crack growing from a notch is considered. Previous methods of analysis involving stress and strain concentration factors are shown to be inadequate. By defining equivalent cracks in notched and un-notched situations as cracks with equal growth rates, the concept of notch contribution to
R.A. Smith, K.J. Miller
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On crack-crack interaction and coalescence in fatigue
Engineering Fracture Mechanics, 1982Abstract The effect of crack-crack interaction and coalescence in fatigue was studied for a single pair of cracks analytically and for multi-cracks based on real microstructure variations by means of Monte Carlo simulations. Crack-crack interaction and coalescence lower the mean fatigue lifetime.
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2018
Readers of this book will have previous knowledge of fracture mechanics, and as such no effort will be made to delve here into fundamental concepts.
Sérgio M. O. Tavares +1 more
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Readers of this book will have previous knowledge of fracture mechanics, and as such no effort will be made to delve here into fundamental concepts.
Sérgio M. O. Tavares +1 more
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The cracking and fatigue of diamond
Journal of Physics D: Applied Physics, 1977Repeated indentations of a diamond surface by a spherical diamond indenter cause a progressive build-up of surface damage and the eventual appearance of short cracks lying along cleavage planes. These results confirm the existence of fatigue type effects in diamond suggested by other earlier experiments.
J G Bell +3 more
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Engineering Fracture Mechanics, 1991
Abstract A loading stage for the scanning electron microscope has been used in conjunction with the stereoimaging technique to study fatigue crack closure for a center notched specimen of an aluminum alloy. The results are compared to similar measurements from single edge notched specimens of the same alloy and other materials.
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Abstract A loading stage for the scanning electron microscope has been used in conjunction with the stereoimaging technique to study fatigue crack closure for a center notched specimen of an aluminum alloy. The results are compared to similar measurements from single edge notched specimens of the same alloy and other materials.
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