Results 261 to 270 of about 134,487 (311)

Effect of nitriding on low-cycle fatigue properties

International Journal of Fatigue, 1997
Abstract Nitriding is a thermochemical surface treatment that is often utilized to improve the fatigue strength of mechanical elements. In fact it is well known that, after the treatment, owing to the formation of a nitrided external layer and a field of residual stresses that are compressive on the surface, the high-cycle strength is strongly ...
GUAGLIANO, MARIO, VERGANI, LAURA MARIA
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Torsional Low Cycle Fatigue

2003
A solution annealed type 316 stainless steel exhibits a uniaxial cyclic stress-strain curve at 550°C ...
J. Yates, M. W. Brown
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Low Cycle Fatigue Counter

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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Initiation from Low Cycle Fatigue to Gigacycle Fatigue

Advanced Materials Research, 2014
This 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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Strain-Based Fatigue Analysis—Low Cycle Fatigue

2012
When 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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Connection among the Characteristics of the Low Cycle Fatigue, High Cycle Fatigue and Fatigue Crack Growth

Key Engineering Materials, 2007
The material quality, the deformation rate, the temperature and the stress state influence mechanical behaviour and properties of different materials. Due to this great variety of the influencing factors we do not have one model of general validity describing the behaviour of materials, but we have to use a great number of material constants in order ...
Gyula Nagy, János Lukács
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Low-Cycle Fatigue Test on Stud Shear Connectors

Journal of Structural Engineering, 1997
In 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, GIURIANI E., GUBANA A.   +2 more
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Low Cycle Fatigue of Cast Austenitic Steel

2017
Cast 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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LOW‐CYCLE FATIGUE OF MATERIALS FOR SUBMARINE CONSTRUCTION

Naval Engineers Journal, 1963
<div class="htmlview paragraph">Materials for submarine construction were investigated to determine their low-cycle flexural fatigue behavior. Botl ferrous and nonferrous materials, including five steels with yield strengths of 40,000-230,000 psi, five nickel base, six aluminum base, and three copper base alloys were used in the study ...
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A low-cycle fatigue approach to fatigue crack propagation

Journal of Materials Science, 1989
The damage accumulation hypothesis is used to derive a fatigue crack growth rate equation. The fatigue life of a volume element inside the plastic zone is evaluated by using low-cycle fatigue concepts. Crack growth rate is expressed as a function of cyclic material parameters and plastic zone characteristics.
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