An approach in plastic strain-controlled cumulative fatigue damage

Ghammouri, M.; Abbadi, M.; Méndez, J.; Belouettar, Salim; Zenasni, M.

doi:10.1016/j.ijfatigue.2010.08.011

Cited by 18 publications

(7 citation statements)

References 15 publications

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“…, is small in the initial stage but increasingly big in the subsequent stage. This increasing trend is consistent with the process of fatigue damage accumulation in terms of fatigue crack growth behavior where the plot of crack size versus the loading cycle number shows a similar trend (Ghammouri et al, 2011).…”

Section: Concept Of Normalized Fatigue Driving Energy (Nfde)supporting

confidence: 86%

Estimation of remaining fatigue life with an energy-based model considering the effects of loading sequence and load interaction

Gan

Zhong

2022

International Journal of Damage Mechanics

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Accurate estimation of remaining fatigue life is crucial to assess the structural durability and reliability of engineering components. For this purpose, an energy-based model is proposed in this paper for modeling the process of fatigue damage accumulation under multistep loading. To account for the effects of loading sequence and load interaction, two parameters, a concept of normalized fatigue driving energy (NFDE) and a load interaction factor, are introduced in the model. The former is based on variable energy-life curves and the latter is formulized as an exponential function of the loading intensity ratio and the number of loading cycles. The implementation procedure of such model only requires the loading information and materials’ basic fatigue properties. Moreover, extensive experimental results of six metallic materials under two-, four- and eight-step loadings with different loading sequences are employed for model comparative study. The results indicate that, compared with several existing damage models, the proposed model can provide better remaining fatigue life estimations under multistep loading.

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Section: Concept Of Normalized Fatigue Driving Energy (Nfde)supporting

confidence: 86%

Estimation of remaining fatigue life with an energy-based model considering the effects of loading sequence and load interaction

Gan

Zhong

2022

International Journal of Damage Mechanics

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“…Experiments on the effect of variable amplitude fatigue loading on structural systems are scarce. For experiments on small copper elements, there is an indication that high-to-low loading levels of variable amplitude loading cannot be represented with Miner's rule, whereas low-to-high loading levels of variable amplitude loading fit Miner's rule (Ghammouri et al, 2011). The validity of these results for concrete structures is questionable.…”

Section: Introductionmentioning

confidence: 95%

Punching Capacity of Prestressed Concrete Bridge Decks Under Fatigue

Lantsoght¹,

Veen²,

Koekkoek³

et al. 2019

ACI Structural Journal

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“…Recently, many researchers have devoted their efforts to variable amplitude fatigue analyses and developed various life fraction models. Ghammouri et al (2011) presented a plastic strain-controlled damage model in accordance with the evolution law of the principal crack to predict the residual life of Oxygen-Free High Thermal Conductivity (OFHC) copper. Huffman and Beckman (2013) used a phenomenological technique to establish a reversal-by-reversal cumulative damage rule for predicting the strain life under VAL.…”

Section: Introductionmentioning

confidence: 99%

A new approach to the investigation of load interaction effects and its application in residual fatigue life prediction

Peng

Huang

Wang

et al. 2015

International Journal of Damage Mechanics

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Fatigue damage under variable amplitude loading is related to load histories, such as load sequences and load interactions. Many nonlinear damage models have been developed to present load sequences, but load interactions are often ignored. This paper provides a new approach to present load interaction effects for nonlinear damage accumulation. It is assumed that the ratio of two consecutive stress levels is used to describe the phenomenon on damage evolution. By introducing the approach to a nonlinear fatigue model without load interactions, a modified model is developed to predict the residual fatigue life under variable amplitude loading. Experimental data from three metallic materials and welded joints in the literature are employed to verify the effectiveness of the proposed method under two-level loading. The result shows that the modified model predicts more satisfactory estimations than the primary model and Miner rule. Furthermore, the proposed method is calibrated and validated by the case of multilevel loading. It is found that the modified model shows a good estimation and its damage curve presents a typical nonlinear behavior of damage growth. It is also convenient to calculate the residual fatigue life by the Wöhler curve.

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An approach in plastic strain-controlled cumulative fatigue damage

Cited by 18 publications

References 15 publications

Estimation of remaining fatigue life with an energy-based model considering the effects of loading sequence and load interaction

Estimation of remaining fatigue life with an energy-based model considering the effects of loading sequence and load interaction

Punching Capacity of Prestressed Concrete Bridge Decks Under Fatigue

A new approach to the investigation of load interaction effects and its application in residual fatigue life prediction

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