Fatigue life predictions by integrating EVICD fatigue damage model and an advanced cyclic plasticity theory

Jiang, Yanyao; Ott, Walter; Baum, Christian; Vormwald, Michael; Nowack, H.

doi:10.1016/j.ijplas.2008.06.007

Cited by 43 publications

(18 citation statements)

References 52 publications

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“…For multiaxial loading some trials have been published, e.g. [22], to use plastic work as the responsible quantity for incrementally increasing the fatigue damage. The models have not yet achieved a wide acceptance.…”

Section: Challenge 3: Definition Of a Damaging Event -Or A Cyclementioning

confidence: 99%

Multi-challenge aspects in fatigue due to the combined occurrence of multiaxiality, variable amplitude loading, and size effects

Vormwald¹

2015

Frattura Ed Integrità Strutturale

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ABSTRACT. The three major issues which contribute to uncertainties in fatigue life estimations are the limited transferability of material data obtained in a laboratory for describing the fatigue behavior of components, the lack of damage accumulation rules to realistically take into account the effects of various load sequences, and the uncertainty in the assessment of multiaxial stress states. The three issues contribute to life prediction errors in a balanced way. Some modeling effort was spent in joining solution proposals in a unifying short crack model. The actual state is presented in the paper together with some ideas for further improvement as well as simplification for promoting the model's acceptance in practical applications.

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Section: Challenge 3: Definition Of a Damaging Event -Or A Cyclementioning

confidence: 99%

Multi-challenge aspects in fatigue due to the combined occurrence of multiaxiality, variable amplitude loading, and size effects

Vormwald¹

2015

Frattura Ed Integrità Strutturale

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“…That is, the fatigue lives predicted by Miner rule are lower than experimental values the for increasing loading and are higher than the experimental results for decreasing loading under the same loading level [2]. Therefore, many methods [3][4][5][6][7][8][9][10][11][12] has been conducted to predict fatigue life under variable loading condition based on nonlinear damage cumulative model. Especially, the literatures [13][14][15][16] explore methods to predict the fatigue life of aluminum alloy 2024-T42 subjected to variable amplitude loading.…”

Section: Introductionmentioning

confidence: 99%

A New Approach to Prediction of Fatigue Life For 2024-T42 Aluminum Under Variable Amplitude Loading

Guo¹,

Ke-ge²,

Liu³

et al. 2017

Proceedings of the 3rd Annual International Conference on Mechanics and Mechanical Engineering (MME 2016)

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Abstract.A new approach is explored to predict the fatigue life of 2024-T42 aluminum subjected to variable amplitude loading. The predicted fatigue lives are compared with the experimental data and those predicted by Miner's rule, which show that the fatigue lives predicted by the proposed approach agree well with the experimental results and most of the errors are within a factor of 2. The proposed approach gives better prediction than the Miner's rule owing to the fact that it can take into account the loading history. Furthermore, the theoretical results tend to be non-conservative for the decreasing loading and the predicted results underestimate the experimental lives for the increasing loading.

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“…An interesting approach to characterize low cycle fatigue accounting for non-regular cycles is the one proposed by Jiang et al [13], which defines an independent continuous cumulative damage function (EVICD) based on the accumulation of plastic strain energy. This formulation is based on previous models of EVICD ([14], [15] and [16]) and states that the total damage can be computed as:…”

mentioning

confidence: 99%

“…With this approach, the authors obtain an evolution of the fatigue damage parameter as the simulation evolves, the material failure is obtained when 1  D . In [13], the model is tested for fatigue ranges between 10 3 to 10 7 cycles, which corresponds to low and high cycle fatigue.…”

mentioning

confidence: 99%

“…This formulation, as well as the formulation proposed by Jiang et al [13], are capable to account for regular and non-regular cycles, as both formulations are based on the addition of certain quantities 4 while the material increases its plastic strain. However, they both have the drawback of being based on a failure criterion that is completely independent of the plastic model (uncoupled approaches): it is calculated as the simulation advances and, when it reaches a certain level, the criterion tells the code that the material has failed.…”

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confidence: 99%

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Analysis of Ultra Low Cycle Fatigue problems with the Barcelona plastic damage model and a new isotropic hardening law

Martı́nez

Oller

Barbu

et al. 2015

International Journal of Fatigue

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This paper presents a plastic-damage formulation and a new isotropic hardening law, based on the Barcelona plastic damage model initially proposed by Lubliner et al. in 1989 [1], which is capable of predicting steel failure due to Ultra Low Cycle Fatigue (ULCF). This failure mechanism is obtained when the material is subjected to cyclic loads and breaks after applying a very low number of cycles, usually less than hundreds. The failure is driven by the plastic response of the material, and it is often predicted based on the plastic strains applied to it. The model proposed in this work has been formulated with the objective of predicting accurately the plastic behavior of the material, as well as its failure due to ULCF. This is achieved taking into account the fracture energy dissipated during the whole loading process. This approach allows the simulation of ULCF when it takes place due to regular cyclic loads or non-regular cyclic loads, as it is the case of seismic loads. Several simulations are conducted in order to show the capabilities of the formulation to reproduce the mechanical response of steel when it is subjected to regular and non-regular cyclic loads. The formulation is validated comparing the numerical results with several experimental tests made on X52 steel specimens. The agreement between the numerical and experimental results asses the validity of the proposed model to predict the plastic behavior of steel and its failure due to Ultra Low Cycle Fatigue.

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Fatigue life predictions by integrating EVICD fatigue damage model and an advanced cyclic plasticity theory

Cited by 43 publications

References 52 publications

Multi-challenge aspects in fatigue due to the combined occurrence of multiaxiality, variable amplitude loading, and size effects

Multi-challenge aspects in fatigue due to the combined occurrence of multiaxiality, variable amplitude loading, and size effects

A New Approach to Prediction of Fatigue Life For 2024-T42 Aluminum Under Variable Amplitude Loading

Analysis of Ultra Low Cycle Fatigue problems with the Barcelona plastic damage model and a new isotropic hardening law

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