Response to Comment on paper: A unified frequency domain fatigue damage modeling approach for random-on-random spectrum [Z. Li and A. Ince. Int J Fatigue, 2019;124:123–137]

Li, Z.; Ince, Ayhan

doi:10.1016/j.ijfatigue.2020.105669

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…At present, the performance of single crystal superalloy is mostly obtained by the experiment using the separately casted alloy cut into standard specimens. Many studies have been conducted on standard specimens in order to better clarify the fatigue behavior of nickel-based single crystal superalloy, especially the effects of environment, material defects, loading waveforms and frequency, and temperature [4][5][6][7]. However, turbine blade is casted one time by directional solidification technology.…”

Section: Introductionmentioning

confidence: 99%

Investigation on low cycle fatigue of nickel‐based single crystal turbine blade in different regions

Wen

Gao

et al. 2018

Materialwissenschaft Werkst

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Low cycle fatigue experiments of nickel-based single crystal superalloy miniature specimens were carried out at 760 8C/1000 MPa and 980 8C/750 MPa. According to testing results, low cycle fatigue life is dependent on sampling position of turbine blade under same test conditions. Fracture surface morphology and longitudinal profile microstructure indicated that the fracture mechanism transformed from cleavage fracture to ductile fracture with the changing of medium temperature to high temperature due to the particle cutting at yield stress intensity. The scanning electron microscopy observation of original material demonstrated that the smaller precipitate size of samples have a shorter fatigue life. Meanwhile, the constitutive model considering size effect was built based on the crystal plastic theory. The finite element analysis demonstrated that the smaller precipitate size could dramatically reduce the plastic deformation suffering the same cycle loading.Keywords: Precipitate size effect / crystal plasticity / fracture mechanism / microstructure / low cycle fatigue Schlü sselwö rter: Ausscheidungseffekte / Kristallplastizitä t / Bruchmechanik / Gefü ge / Kurzzeitermü dung Corresponding author: Z. Wen,

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Section: Introductionmentioning

confidence: 99%

Investigation on low cycle fatigue of nickel‐based single crystal turbine blade in different regions

Wen

Gao

et al. 2018

Materialwissenschaft Werkst

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“…In the case of low fatigue modeling it is important that this approach allows to estimate fatigue not only at the stage of crack initiation and also during the crack propagation [13,14]. The continuum damage methods make it possible to determine fatigue life for different materials; apart from steel it can be used for other materials including titanium alloy, concrete, rubber, composites and different structural components e. g. aeroengine blade, bridges, steam turbine rotor, plexiglas resist [8,11,[15][16][17][18][19][20]. Characteristics of continuum damage methods allow to take into consideration the load sequence effect [21].…”

Section: Introductionmentioning

confidence: 99%

Application of continuum damage mechanics model in terms of fatigue life assessment for low cycle and quasi static loadings

Skibicki

Ligaj

2018

Materialwissenschaft Werkst

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The aim of this study is to test the classical Lemaitre model based on continuum damage mechanics (CDM) approach in the range of low cycle and quasi‐static fatigue life. Study is carried out with the use of results of experimental tests for C45 steel (according to AISI: 1045 steel) carried out under variable‐amplitude loading. Loading programs are of two‐step character and include blocks of cycles of different lengths and R = ‐1 coefficients. Fatigue lives are calculated according to Lemaitre model from experimentally obtained stress and strain histories recorded during fatigue tests. The results are compared with experimental tests results and with fatigue lives calculated with the use of by traditional fatigue approach based on Palmgren‐Miner damage summation hypothesis. Experimental test of fatigue life calculation results for C45 steel reveals that continuum damage method, using the recorded stresses and strains, predicts fatigue life better as compared to the remaining methods. The study also contains many detailed analyses of experimental results.

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Response to Comment on paper: A unified frequency domain fatigue damage modeling approach for random-on-random spectrum [Z. Li and A. Ince. Int J Fatigue, 2019;124:123–137]

Cited by 2 publications

References 5 publications

Investigation on low cycle fatigue of nickel‐based single crystal turbine blade in different regions

Investigation on low cycle fatigue of nickel‐based single crystal turbine blade in different regions

Application of continuum damage mechanics model in terms of fatigue life assessment for low cycle and quasi static loadings

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