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Aircraft Engineering and Aerospace Technology, 1980
The modern aircraft gas turbine engine produces power on demand hour upon hour and day in, day out. It is one of the most extensively used types of high‐speed rotating machinery as well as one of the most efficient converters of fuel into thrust. Reliability and long life with minimum maintenance depend on efficient monitoring of engine performance and
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The modern aircraft gas turbine engine produces power on demand hour upon hour and day in, day out. It is one of the most extensively used types of high‐speed rotating machinery as well as one of the most efficient converters of fuel into thrust. Reliability and long life with minimum maintenance depend on efficient monitoring of engine performance and
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Conventional Fatigue (High- and Low-Cycle Fatigue)
1997It is known that when metals are subjected to fluctuating load, the failure occurs at a stress level much lower than the fracture stress corresponding to a monotonic tension load.1 With the development of the railway in the nineteenth century, the fatigue failure of railway axles became a problem and much attention was given to the understanding of the
Bahram Farahmand +2 more
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Initiation from Low Cycle Fatigue to Gigacycle Fatigue
Advanced Materials Research, 2014This paper is devoted to the initiation of fatigue crack in Armco iron from low cycle fatigue to gigacycle fatigue. It is shown that the basic mechanisms of initiation are very similar from a physical point of view: PSB and Grain boundary cracking. But the mechanical aspect is specific in LCF and in GCF.
Bathias, Claude, Wang, Chong
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Low-Cycle Fatigue Test on Stud Shear Connectors
Journal of Structural Engineering, 1997In steel-concrete composite beams particular attention has to be paid to the fatigue phenomena in the connection. If each part of the structure behaves elastically the problem can be faced with the classical load-life fatigue approach, but for long-span beams, the slip at interface may reach values that involve inelastic deformation of the connector ...
GATTESCO, Natalino +2 more
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Strain-Based Fatigue Analysis—Low Cycle Fatigue
2012When the plastic component the cyclic strain cannot be neglected and, indeed, prevails over the elastic one, stresses are no longer uniquely determined and must be put aside in the fatigue analysis. This is the case of structural discontinuities in general and of notches, in particular, where local strains can go well beyond the elastic limit of the ...
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Machine learning framework for predicting the low cycle fatigue life of lead-free solders
Engineering Failure Analysis, 2023Xu Long +3 more
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2003
The major fatigue loading for a turbocharger intercooler on a lorry engine is the once per day start up and cool down cycle. The intercooler is made from an aluminium alloy whose properties are given below. The critical location for fatigue failure is known from finite element models to experience an equibiaxial, in-phase proportional strain cycle ...
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The major fatigue loading for a turbocharger intercooler on a lorry engine is the once per day start up and cool down cycle. The intercooler is made from an aluminium alloy whose properties are given below. The critical location for fatigue failure is known from finite element models to experience an equibiaxial, in-phase proportional strain cycle ...
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Low Cycle Fatigue of Cast Austenitic Steel
2017Cast austenitic stainless steel 1.4848 is used to manufacture automotive exhaust system components. Low cycle fatigue (LCF) of 1.4848 austenitic steel was investigated through strain controlled fatigue testing at strain rates of 0.02/s, 0.002/s, and 0.0002/s in the temperature range from room temperature (RT) to 900°C.
Wu, X., Quan, G., Sloss, C.
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Frequency effects in low-cycle fatigue
Metallurgical Transactions, 1970The phenomenon of low-cycle fatigue was investigated with total strain ranges from 1 to 2 pct and frequencies from 0.2 to 100 cpm. Changes in endurance life under varying strain and frequency conditions were determined. During the endurance tests moment and strain values were recorded.
Doĝan E. Gücer, Mehmet Çapa
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