A stress-based fatigue criterion to assess high-cycle fatigue under in-phase multiaxial loading conditions

Gołoś, K.; Dębski, D.; Dębski, Maciej

doi:10.1016/j.tafmec.2014.07.005

Cited by 11 publications

(6 citation statements)

References 31 publications

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“…New criteria for multiaxial fatigue strength evaluation keep emerging, though the trends in fatigue research have changed somewhat. The problem may seem to have been solved, and no longer to be of much interest.…”

Section: Introductionmentioning

confidence: 99%

Validation data set for testing the criteria for multiaxial fatigue strength estimation

Papuga

Vízková

Nesládek

et al. 2018

Fatigue Fract Eng Mat Struct

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This paper describes the way in which a specialized validation set intended for quick validation of new multiaxial fatigue strength estimation models in the high‐cycle fatigue regime was prepared. The rules established for accepting various data sets into the complete FatLim database are briefly described. This final FatLim database contained 282 data items at the moment this paper was written. The paper describes how FatLim has been reduced to a smaller validation set, marked as AMSD25. The criteria used for accepting the data items for this small‐scale test set are based on evaluating the mean and the standard deviation of the fatigue index errors obtained for each data item on the basis of 18 different prediction criteria. The items that got into the AMSD25 validation set are described, and potential issues are noted. The comparison between the original FatLim validation set and the shortened AMSD25 data set is presented. It shows that the in‐phase load cases without any mean stress effect are generally well mastered by most criteria, and they can be excluded as insignificant from any such analysis. However, the mean stress effect is generally poorly incorporated. Future multiaxial fatigue strength criteria should focus on load cases including mean stresses.

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Section: Introductionmentioning

confidence: 99%

Validation data set for testing the criteria for multiaxial fatigue strength estimation

Papuga

Vízková

Nesládek

et al. 2018

Fatigue Fract Eng Mat Struct

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“…Therefore, there is the need to strengthen the research in this field. From an engineering point of view, as is well-known, fatigue design is usually carried out using stress-based, strain-based, or energy-based relationships [8][9][10]. In the modern fatigue life prediction models, cyclic plasticity plays a major role and is considered to be the main cause of damage [11,12].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of the Uniaxial Cyclic Behaviour of Carbide-Bearing and Carbide-Free Bainitic Steels

Branco

Berto

Zhang

et al. 2018

Metals

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Bainitic steels play an important role in the modern automotive and rail industries because of their balanced properties. Understanding the relationship between the bainitic microstructure features and the fatigue performance is a fundamental ingredient in developing safer and durable products. However, so far this relationship is not sufficiently clear. Therefore, there is the need to strengthen the knowledge within this field. The present paper aims at comparing the uniaxial cyclic behaviour of carbide-bearing and carbide-free bainitic steels. To meet this goal, fully-reversed strain-controlled tests at various strain amplitudes were performed. After the final failure, fracture surfaces were observed by transmission electron microscopy to relate the bainitic morphology to the fatigue performance. The main findings of this work show that the carbide-free lower bainite has superior fatigue performance compared to the carbide-bearing lower bainite. This is explained by the presence of stable carbides and thick bainite ferrite plates.

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“…A multiaxial fatigue model based on stress components was established by Shang et al [6] using the linear relationship between the maximum normal stress and shear amplitude. The critical plane approach in multiaxial fatigue is based on the physical observation of crack initiation and growth in a particular plane assisted by the parameters in combinations involving damage to normal and shear stress on a plane [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…Damage parameters have been proposed to predict multiaxial fatigue failure and most of them are limited to certain load cases [12]. The multi-axis analysis approach can be divided into three categories based on the stress, strain and energy [8]. In considering the strain measurement, it is good to correlate the parameters with the fatigue life [13].…”

Section: Introductionmentioning

confidence: 99%

“…In considering the strain measurement, it is good to correlate the parameters with the fatigue life [13]. The strain-based approach can be considered as an approach which describes the overall behaviour of both the elastic and inelastic region where applicable, to detect the local plastic strain of stress concentration with the ability to change the input parameters such as the load history, geometry and attributes to predict the monotonic and cyclic fatigue life of components [5,8,14]. The strain-life approach considers the nominal elastic stresses and how they are related to the life.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Characterization of the biaxial fatigue behaviour on medium carbon steel using the strain-life approach

Mohamed¹,

Abdullah²,

Arifin³

et al. 2016

Int. J. Automot. Mech. Eng.

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This study aims to investigate the fatigue behaviour and determine the fatigue life prediction under biaxial loading. Fatigue tests were performed according to ASTM 2207-02 and the values of tensile stresses are selected from the ultimate tensile strength which is 0.5 Su, 0.6 Su, 0.7 Su, 0.8 Su and 0.9 Su, while the torsion angle representing the shear stresses acting was set at 15 degrees. The biaxial fatigue test was conducted using a combination of two types of stresses acting on the same frequency, namely 1 Hz, on smooth specimens made from medium carbon steel. The biaxial fatigue lives of the specimens are recorded when the specimen has completely fractured. The results indicate that the observed fatigue lives are in good agreement with the predicted lives by using the Coffin-Manson, Morrow, and Smith-Watson-Topper strain-based models. Mohr's circle approach was used to determine the maximum shear stress and principal normal stress. The maximum shear stress increased from 457 MPa to 486 MPa with the increment of principal normal stress from 612 MPa to 767 MPa. The principal stresses, maximum shear stresses, and energy dissipated were used to explain and describe the behaviour of biaxial fatigue. Both stresses are inversely proportional to the fatigue life. Meanwhile, the energy is linearly proportional to the stress applied, where the values increase in the range 500 kJ/m 3 to 605 kJ/m 3. Thus, the basic understanding of the material behaviour may be used in the processes of declaring component service lives and the fatigue life prediction of a particular automotive component. Therefore, the cost incurred can be reduced for the development process in material engineering.

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A stress-based fatigue criterion to assess high-cycle fatigue under in-phase multiaxial loading conditions

Cited by 11 publications

References 31 publications

Validation data set for testing the criteria for multiaxial fatigue strength estimation

Validation data set for testing the criteria for multiaxial fatigue strength estimation

Comparative Study of the Uniaxial Cyclic Behaviour of Carbide-Bearing and Carbide-Free Bainitic Steels

Characterization of the biaxial fatigue behaviour on medium carbon steel using the strain-life approach

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