On the applicability of Miner’s rule for multiaxial fatigue life calculations under non-proportional load histories [PDF]
Fatigue design routines and computer codes must use some damage accumulation rule to deal with variable amplitude loadings (VAL), usually Palmgren-Miner (or Miner’s) linear rule for lack of a clearly better option.
Marco Antonio Meggiolaro +3 more
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Prediction of Fatigue Crack Initiation under Variable Amplitude Loading: Literature Review
Metallic materials are widely employed in engineering constructions, and one of the most common failure mechanisms in metals is fatigue failure. Even though metal fatigue has been studied for almost 160 years, many problems remain unsolved.
Yahiya Ahmed Kedir, Hirpa G. Lemu
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The Strain energy density to estimate lifetime of notched components subjected to variable amplitude fatigue loading [PDF]
In the present paper, the approach based on the strain energy density (SED) averaged over a structural volume is reformulated to estimate the lifetime of notched components subjected to variable amplitude (VA) uniaxial fatigue loading.
Zheng Hu, Filippo Berto, Luca Susmel
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Influence of the transient material behaviour in the fatigue life estimation under random loading
485492The estimation of the fatigue life under variable amplitude loading is a fundamental step in the design phase. To consider variable amplitudes in the fatigue design the linear damage accumulation is applied, thus disregarding non linearity.
Melz, T., Tomasella, A., Wagener, R.
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Comparative study of multiaxial fatigue methods applied to welded joints in marine structures [PDF]
Marine structures are particularly prone to action of waves, winds and currents with stochastically varying composition, intensities and directions. Therefore, resultant stresses may cause multiaxial fatigue in specific welded structural details.
P.S. van Lieshout +2 more
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PE-HD fatigue damage accumulation under variable loading based on various damage models
Despite numerous studies on fatigue of polymer materials under variable loading, there is little work on highdensity polyethylene (PE-HD). In this context, an experimental analysis for determining the fatigue strength of PE-100, under constant and ...
M. Bourchak, A. Aid
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Fatigue life of welded high-strength steels under Gaussian loads
293301Within the scope of the investigation of welded high-strength steels for application in crane structures, a Gaussian-like test spectrum is derived from an analysis of recorded load time histories.
Melz, Tobias +4 more
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A statistically self-consistent fatigue damage accumulation model including load sequence effects under spectrum loading [PDF]
A probabilistic methodology is proposed to evaluate fatigue damage accumulation and fatigue lives of specimens under variable amplitude loading. With probabilistic modifications in the present model, the calculative consistency is achieved between ...
Chen Xianmin +3 more
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Shortcuts in multiple dimensions: the multiaxial racetrack filter [PDF]
Filtering techniques have been proposed for multiaxial load histories, usually aiming to filter out non-reversals, i.e. sampling points that do not constitute a reversal in any of its stress or strain components. However, the path between two reversals
M.A. Meggiolaro, J.T.P. Castro, H. Wu
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Why variable amplitude loading? A key for lightweight-structural durability design
7380The technical importance of variable amplitude (spectrum) loading is not only given by obtaining much longer fatigue lives compared with those determined under constant amplitude loading with the maximum value of the spectrum.
Melz, Tobias +2 more
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