Random multiaxial fatigue: A comparative analysis among selected frequency and time domain fatigue evaluation methods

Braccesi, Claudio; Cianetti, Filippo; Lori, G.; Pioli, D.

doi:10.1016/j.ijfatigue.2015.01.003

Cited by 57 publications

(32 citation statements)

References 37 publications

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“…A variant of the well‐known Matake criterion was proposed by the authors of Refs (see also the review in Benasciutti et al . and that by Braccesi et al …”

Section: Time Domain (Numerical Deterministic) Approaches For Multiamentioning

confidence: 99%

“…The Dang Van and Papadopoulos mesoscopic approach has been extended to variable amplitude loading by Braccesi et al . An infinite life condition of fatigue limit with a probability of survival equal to 50%, that is to say, 50% probability of no failure with a repetition of N 0 load sequences of duration T .…”

Section: Time Domain (Numerical Deterministic) Approaches For Multiamentioning

confidence: 99%

“…The multiaxial rainflow method can be formulated in the frequency domain . This yields an equivalent PSD function S eq ( ω ) = tr ( MS ( ω )), where now M = c ⋅ c T being c the vector covering the whole unit sphere for biaxial loading (and unit six‐dimensional hypersphere in a general stress state).…”

Section: Frequency Domain (Analytical Stochastic) Approaches For Mulmentioning

confidence: 99%

“…Research in the area of variable amplitude and random fatigue is summarized in the book of Nieslony and Macha and in the recent review articles (see also the PhD theses).…”

Section: Introductionmentioning

confidence: 99%

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A review of multiaxial fatigue criteria for random variable amplitude loads

Carpinteri

Spagnoli

2017

Fatigue Fract Eng Mat Struct

119

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Nowadays, the estimation of fatigue life under multiaxial random loading is still an extremely complex task. In this paper, a comprehensive review of the multiaxial random fatigue criteria available in the literature is presented. Such a review is mainly devoted to stress‐based criteria for the evaluation of fatigue life in high‐cycle regime. Time and frequency domain approaches are examined. The focus of this paper is related to uniform stress/strain distribution, but also the effect of stress/strain gradient is tangentially addressed. More than 200 references are cited.

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“…A variant of the well‐known Matake criterion was proposed by the authors of Refs (see also the review in Benasciutti et al . and that by Braccesi et al …”

Section: Time Domain (Numerical Deterministic) Approaches For Multiamentioning

confidence: 99%

Section: Time Domain (Numerical Deterministic) Approaches For Multiamentioning

confidence: 99%

Section: Frequency Domain (Analytical Stochastic) Approaches For Mulmentioning

confidence: 99%

“…Research in the area of variable amplitude and random fatigue is summarized in the book of Nieslony and Macha and in the recent review articles (see also the PhD theses).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A review of multiaxial fatigue criteria for random variable amplitude loads

Carpinteri

Spagnoli

2017

Fatigue Fract Eng Mat Struct

119

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“…When calculating the shear stress amplitude, the frequency-domain approach is faster than usual time-domain algorithms, which need to process directly a digitalized random load path. Time saving is further enhanced if the computation of the shear stress amplitude has to be repeated in thousands of nodes of a large three-dimensional finite element model [53][54][55].…”

Section: Multiaxial Loadingsmentioning

confidence: 99%

Frequency‐based analysis of random fatigue loads: Models, hypotheses, reality

Benasciutti

Tovo

2018

Materialwissenschaft Werkst

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Spectral methods use analytical expressions to estimate the fatigue damage in vibrating structures subjected to uniaxial or multiaxial random stresses. They exploit the random vibration theory which idealizes the random stress as a random process characterized by a power spectral density (PSD) in the frequency‐domain. The random process is hypothesized to be stationary or non‐stationary, Gaussian or non‐Gaussian, and with narrow‐band or wide‐band power spectral density. The accuracy of analytical spectral solutions depends on whether such hypotheses are fulfilled by actual random time‐histories encountered in practice. Knowing the range of applicability of each spectral method is then of utmost importance to avoid estimation errors. After a short account on the frequency‐domain description of random processes, this paper presents a brief survey on selected spectral methods for uniaxial and multiaxial random loading. It then analyzes when the hypotheses behind each spectral method are not verified in reality, with the purpose to provide recommendations for a safe use of frequency‐based methods.

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