Characterization of the fatigue behaviour for SAE 1045 steel without and with load-free sequences based on non-destructive, X-ray diffraction and transmission electron microscopic investigations

Wu, Haoran; Bill, Tobias; Teng, Zhenjie; Pramanik, Sudipta; Hoyer, Kay-Peter; Schaper, Mirko; Starke, Peter

doi:10.1016/j.msea.2020.139597

Cited by 11 publications

(21 citation statements)

References 28 publications

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“…Ong's model (1993): Concerning the material data necessary for the determination of the Ramberg-Osgood curve [14,16,31], there are three methods of their approximation. The first method was developed by Manson and published in 1964.…”

Section: Discussionmentioning

confidence: 99%

“…where: Since the numerical strength analysis of a vibrating blade in the resonance state with an amplitude of 1.8 mm was performed based on a linear-elastic model, it is necessary to use a model taking into account the cyclic hardening (from the Ramberg-Osgood Equation ( 2)), i.e., cyclic strength coefficient (K') and cyclic strain hardening exponent (n'). The Manson's, Fatemi's, and Xianxin's models were selected for the analysis [14][15][16]31]. Some models depend on the fatigue model of the material.…”

Section: Numerical Models Of the Materials Propertiesmentioning

confidence: 99%

“…There are several methods for determining the value of the residual stresses, one of the most accurate and the most sensitive is X-ray diffraction [11][12][13][14]. Knowledge of the residual stresses can be included in numerical calculations to obtain results closer to the actual fatigue life results [13][14][15][16]. Such recognition of the topic may allow increasing the safety of air transport.…”

Section: Introductionmentioning

confidence: 99%

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Numerical and Experimental Assessment of the Effect of Residual Stresses on the Fatigue Strength of an Aircraft Blade

Bednarz

Misiołek

2021

Materials

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The work presents the results of numerical fatigue analysis of a turbine engine compressor blade, taking into account the values of initial stresses resulting from surface treatment-shot-peening. The values of the residual stresses were estimated experimentally using X-ray diffraction. The paper specifies the values of the residual stresses on both sides of the blade and their reduction due to cutting through the blade-relaxation. The obtained values of the residual stresses were used as initial stresses in the numerical fatigue analysis of the damaged compressor blade, which was subjected to resonant vibrations of known amplitude. Numerical fatigue ε-N life analysis was based on several fatigue material models: Manson’s, Mitchell’s, Baumel-Seeger’s, Muralidharan-Manson’s, Ong’s, Roessle-Fatemi’s, and Median’s, and also on the three models of cyclic hardening: Manson’s, Xianxin’s, and Fatemi’s. Because of this approach, it was possible to determine the relationship between the selection of the fatigue material ε-N model and the cyclic hardening model on the results of the numerical fatigue analysis. Additionally, the calculated results were compared with the results of experimental research, which allowed for a substantive evaluation of the obtained results. These results are of great scientific and practical importance. The problem of determining the fatigue life of blades with defects operating under resonance vibrations is one of the original tasks in the field of fracture mechanics and experimental mechanics. The results obtained are of great importance in the aviation industry and can be used during engine maintenance and inspections to assess the suitability of blades with defects in terms of the needs of further work. This aspect of engineering maintenance is of great importance from the aircraft safety point of view.

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Section: Discussionmentioning

confidence: 99%

Section: Numerical Models Of the Materials Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Numerical and Experimental Assessment of the Effect of Residual Stresses on the Fatigue Strength of an Aircraft Blade

Bednarz

Misiołek

2021

Materials

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“…The investigated quenched and tempered SAE 4140 (42CrMo4) steel is in accordance with DIN EN 10083-3 and its chemical composition is given in Table 3. Within transmission electron microscopy investigations in Figure 2b, the dislocation density in the unloaded original state was evaluated to ρ = 1.2 × 10 9 cm −2 , which is a typical value for this material condition [23].…”

Section: • Sae 1045 (C45e) Steelmentioning

confidence: 99%

“…Figure 2. (a) Light micrograph and (b) transmission electron micrograph of SAE 1045 (C45E) steel in the original state (reproduced from[23], with permission from Elsevier, 2020).…”

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confidence: 99%

SteBLife, a New Approach for the Accelerated Generation of Metallic Materials’ Fatigue Data

Acosta

Venkat

et al. 2020

Metals

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The service life of materials and components exposed to repeated mechanical loads is limited, which is why the understanding of the damage evolution and estimating its fatigue life is of high importance for its technical application. This paper shows how temperature and magnetic field measurement methods can be used to describe the cyclic deformation behaviour of metallic materials and to derive parameters from this, which are used in short-term methods to calculate the fatigue life. Within the SteBLife (stepped-bar fatigue life) approach, only three to five fatigue tests with a stepped fatigue specimen are required to determine a complete S–N or Woehler curve with scatter bands for different failure probabilities. If only a trend S–N curve is required, the number of tests can be reduced to a single fatigue test only. In the framework of this paper, these approaches will be presented for normalised SAE 1045 (C45E) and quenched and tempered SAE 4140 (42CrMo4) steels.

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Rapid fatigue life prediction of butt joint using energy dissipation

Wei

Sun

Chen

et al. 2023

International Journal of Mechanical Sciences

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Characterization of the fatigue behaviour for SAE 1045 steel without and with load-free sequences based on non-destructive, X-ray diffraction and transmission electron microscopic investigations

Cited by 11 publications

References 28 publications

Numerical and Experimental Assessment of the Effect of Residual Stresses on the Fatigue Strength of an Aircraft Blade

Numerical and Experimental Assessment of the Effect of Residual Stresses on the Fatigue Strength of an Aircraft Blade

SteBLife, a New Approach for the Accelerated Generation of Metallic Materials’ Fatigue Data

Rapid fatigue life prediction of butt joint using energy dissipation

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