Determination of the critical plane by a weight-function method based on the maximum shear stress plane under multiaxial high-cycle loading

Wang, Xiaowei; Shang, De‐Guang

doi:10.1016/j.ijfatigue.2016.04.010

Cited by 18 publications

(19 citation statements)

References 35 publications

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“…Thus, in [17,38,42], with an increase in the phase shift angle, a decrease in the number of cycles was observed, in [14], an increase, and in [20], no significant changes were observed. It should be noted that the alloys presented in [14,17,20,38,42] were similar in composition, but differed in heat treatment. The final part of the study was aimed at studying the effect of changing the frequency ratio of biaxial loading on fatigue life.…”

Section: Experimental Procedures and Resultsmentioning

confidence: 88%

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Influence of different loading paths on the multiaxial fatigue behavior of 2024 aluminum alloy under the same amplitude values of the second invariant of the stress deviator tensor

Yankin

Mugatarov

Wildemann

2020

Frattura Ed Integrità Strutturale

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2024 aluminum alloy is a common aeronautic material. During operations, construction elements made of aluminum alloys undertake complex cyclic loadings. Therefore, it is important to estimate the influence of these loadings on the durability of the material. Hereby, multiaxial fatigue tests with the same amplitude values of the second invariant of the stress deviator tensor are conducted, and test data are analyzed. The modified Sines method is utilized to predict fatigue experimental data. Results show that the model is accurate enough to fatigue behavior prediction of 2024 aluminum alloy.

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Section: Experimental Procedures and Resultsmentioning

confidence: 88%

“…The fatigue curves obtained in tension-compression and torsion for an aluminum alloy have different slope angles [14,20,42], that is, the ratio σ a (N i ) / τ a (N i ) is not constant. This means that for the same values of the stress amplitude, σ Ma , the number of cycles before failure can be different.…”

Section: Experimental Procedures and Resultsmentioning

confidence: 99%

Influence of different loading paths on the multiaxial fatigue behavior of 2024 aluminum alloy under the same amplitude values of the second invariant of the stress deviator tensor

Yankin

Mugatarov

Wildemann

2020

Frattura Ed Integrità Strutturale

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“…In earlier works by these authors [ 40 , 41 ], derivation of correlations (19) was not given; it was adopted arbitrarily. In addition, in the latest literature, there are attempts to determine the orientation of the critical plane, determining it through weight functions and using mean values of shear stresses [ 42 ]. However, in [ 43 ], the orientation of the critical plane is determined analytically with the assumption of a perfectly elastic body.…”

Section: Methodsmentioning

confidence: 99%

Fatigue Prediction of Aluminum Alloys Considering Critical Plane Orientation under Complex Stress States

Kurek

2020

Materials

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This publication is intended to present a new way of estimating the fatigue life of various construction materials. Carpinteri’s proposal was modified by replacing the fatigue limits ratio with the value of the normal to shear stress ratio for a given number of cycles. In this study, the proposed criterion and calculation model was verified for the selected group of aluminium alloys. The purpose of the analysis of the experimental studies was to check the effectiveness of the proposed method of estimating fatigue life under the applied bending and torsional load conditions. The results of the fatigue calculations are presented in graphical form by means of diagrams showing the comparison of design and experimental strength. Before fatigue life was calculated, the critical plane orientation according to Carpinteri’s model and the proposed model were determined. After analyzing the results of the comparison of design and experimental durability, it can be stated that the proposed fatigue life estimation algorithm gives satisfactory results for multiaxial cyclic loads.

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“…The determination of the critical plane is through a procedure following the same logic as that in Wang and Shang. 37 The critical plane is defined by the weighted mean maximum absolute shear strain. Since two planes have the same value of the mean maximum absolute shear strain, the critical plane is defined as the one with larger cumulative damage.…”

Section: Determination Of the Critical Plane By The Weight Function Mmentioning

confidence: 99%

A weight function method for multiaxial low-cycle fatigue life prediction under variable amplitude loading

Wang

Shang

Sun

2018

The Journal of Strain Analysis for Engineering Design

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A weight function method based on strain parameters is proposed to determine the critical plane in low-cycle fatigue region under both constant and variable amplitude tension-torsion loadings. The critical plane is defined by the weighted mean maximum absolute shear strain plane. Combined with the critical plane determined by the proposed method, strain-based fatigue life prediction models and Wang-Brown's multiaxial cycle counting method are employed to predict the fatigue life. The experimental critical plane orientation and fatigue life data under constant and variable amplitude tension-torsion loadings are used to verify the proposed method. The results show that the proposed method is appropriate to determine the critical plane under both constant and variable amplitude loadings.

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Determination of the critical plane by a weight-function method based on the maximum shear stress plane under multiaxial high-cycle loading

Cited by 18 publications

References 35 publications

Influence of different loading paths on the multiaxial fatigue behavior of 2024 aluminum alloy under the same amplitude values of the second invariant of the stress deviator tensor

Influence of different loading paths on the multiaxial fatigue behavior of 2024 aluminum alloy under the same amplitude values of the second invariant of the stress deviator tensor

Fatigue Prediction of Aluminum Alloys Considering Critical Plane Orientation under Complex Stress States

A weight function method for multiaxial low-cycle fatigue life prediction under variable amplitude loading

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