Cumulative Damage and Life Prediction Models for High-Cycle Fatigue of Metals: A Review

Hectors, Kris; Waele, Wim De

doi:10.3390/met11020204

Cited by 89 publications

(52 citation statements)

References 136 publications

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“…The equivalent stress amplitudes were calculated by Formula (7), with k = 0.68 for all determined components. The damage rate, D MDSM , was determined by the linear cumulative damage (Palmgren-Miner’s) rule [ 54 ]. It was observed that the highest impact on the damage rate was the primary cycle.…”

Section: Resultsmentioning

confidence: 99%

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Using the Effect of Compression Stress in Fatigue Analysis of the Roller Bearing for Bimodal Stress Histories

2021

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A new approach based on the direct spectral method for fatigue analysis of elements subjected to bimodal stress histories, including high compression effects, is proposed. A correction factor, taking into account the influence of the mean compressive stresses, is used in the proposed method. Equivalent amplitude is estimated, based on criteria proposed by Smith, Watson, and Tooper, and by Bergmann and Seeger. The method is presented with example of a thrust roller bearing. Two cases in which the rollers were subjected to constant force 206 N (where constant amplitude stresses occurred in the rollers) and cyclic force (where bimodal stresses with variable amplitudes occurred in the rollers) are studied. It is observed that multiaxial fatigue criteria (Crossland, Papadopoulos) do not include the influence of bimodal stresses and should not be used for such loading conditions. The proposed method includes both kinds of stress waveforms in the fatigue analysis and can be applied for the accurate identification of stress components and the determination of fatigue life. The damage rate calculated by the proposed approach for rollers subjected to a cyclic force (equivalent load equal to 151 N) was 0.86, which is in good agreement with the recommendations provided in the literature. The obtained accuracy of the proposed method is above 95%.

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Section: Resultsmentioning

confidence: 99%

“…the obtained data describing the identified stress cycles for a given waveform are the basis for further fatigue analysis, using the chosen stress cumulation hypothesis, i.e., Palmgreen-Miner’s [ 36 , 37 , 38 , 52 , 53 , 54 ].…”

Section: Methodsmentioning

confidence: 99%

Using the Effect of Compression Stress in Fatigue Analysis of the Roller Bearing for Bimodal Stress Histories

2021

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“…The proposed probability-based model was applied to predictions of damage degree in different conditions. Here, the model was established for 1.0570 steel and two alumin ium alloys, LY12-CZ and 2524-T3, according to Equation ( 3), the design s-n curves in Equation (10) and Table 1, and the parameter estimation results listed in Section 4.1, as well as Tables 2-5. The calculated values of damage degree were further compared to the values calculated according to Miner's rule.…”

Section: Resultsmentioning

confidence: 99%

“…As can be seen, Miner's rule is based on a linear model of damage accum Although Miner's rule is widely used in the case of metallic materials because it is implement and computationally inexpensive, an issue was raised concerning the of the critical damage degree [1]. Linear damage accumulation rules, under cert cumstances (e.g., sequential loading effects, notches, non-standard environmen produce significant and unusual scatter, corresponding to the scatter band equal t or even more [9,10]. Non-linear damage accumulation rules offer more accurate o conservative predictions than the linear rules [9,10].…”

Section: Relation Between Fatigue Damage Accumulation and Fatigue Lifementioning

confidence: 99%

“…Linear damage accumulation rules, under certain circumstances (e.g., sequential loading effects, notches, non-standard environments), can produce significant and unusual scatter, corresponding to the scatter band equal to three or even more [ 9 , 10 ]. Non-linear damage accumulation rules offer more accurate or more conservative predictions than the linear rules [ 9 , 10 ]. They also seem to be physically justified since the fatigue processes involve crack nucleation, crack propagation, and final failure.…”

Section: Relation Between Fatigue Damage Accumulation and Fatigue Lifementioning

confidence: 99%

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Non-Linear Probabilistic Modification of Miner’s Rule for Damage Accumulation

Blacha

2021

Materials

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A non-linear modification to Miner’s rule for damage accumulation is proposed to reduce the scatter between experimental fatigue life and fatigue life predicted according to the original Miner’s sum. Based on P-s-n probability distribution and design s-n curves, the modification satisfies the assumption of equality between the mean damage degree (at the critical level) and fatigue life random variables, which is not covered in the original formulation. The adopted formulation shows the discrepancies between the fatigue lives predicted according to the design s-n curves and the estimated probability distribution. It also proves that it is inappropriate to apply a normal distribution to fatigue life analysis and that the model becomes non-linear only for non-normal distributions. The predictions according to the established model were compared to the predictions obtained with Miner’s rule.

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Anti‐Fatigue Hydrogel Electrolyte for All‐Flexible Zn‐Ion Batteries

Liu

Zhuang

et al. 2023

Advanced Materials

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Hydrogel electrolytes are widely explored in Zn metal batteries for application in wearable electronics. While extensive studies have been conducted on optimizing the chemical structure and boosting the tensile elasticity, the mechanical stability of the hydrogel under repeated deformation is largely overlooked, leading to unsatisfactory performance at large cycling capacity. This work systematically analyzes the compressive fatigue‐resistance properties of the hydrogel electrolyte, revealing the critical roles of the salt and copolymer matrix on crack initiation and propagation. It shows that, on the premise of homogeneous Zn deposition, an improved anti‐fatigue property is essential to achieve high‐capacity Zn metal anodes. The optimal Zn(ClO4)2‐polyacrylamide/chitosan hydrogel electrolyte (C‐PAMCS) exhibits an unprecedented lifespan of 1500 h for Zn//Zn cells at a current density of 10 mA cm−2 and a high areal capacity of 10 mAh cm−2. The potential application of C‐PAMCS is exemplified in all‐flexible Zn‐ion batteries enabled by a flexible current collector consisting of a Ag nanowires embedded elastomer. This study provides the rationale under hydrogel electrolyte engineering toward advanced Zn‐ion battereis and the application in flexible devices.

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Cumulative Damage and Life Prediction Models for High-Cycle Fatigue of Metals: A Review

Cited by 89 publications

References 136 publications

Using the Effect of Compression Stress in Fatigue Analysis of the Roller Bearing for Bimodal Stress Histories

Using the Effect of Compression Stress in Fatigue Analysis of the Roller Bearing for Bimodal Stress Histories

Non-Linear Probabilistic Modification of Miner’s Rule for Damage Accumulation

Anti‐Fatigue Hydrogel Electrolyte for All‐Flexible Zn‐Ion Batteries

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