Estimation of fatigue life under multiaxial loading by varying the critical plane orientation

2017 ◽  
Vol 100 ◽  
pp. 512-520 ◽  
Author(s):  
Andrea Carpinteri ◽  
Marta Kurek ◽  
Tadeusz Łagoda ◽  
Sabrina Vantadori
Keyword(s):  
Fatigue Life ◽  
Multiaxial Loading ◽  
Critical Plane ◽  
Plane Orientation

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

Materials ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 3877
Author(s):  
Marta Kurek
Keyword(s):  
Fatigue Life ◽  
Experimental Studies ◽  
Construction Materials ◽  
Estimation Algorithm ◽  
Complex Stress ◽  
Calculation Model ◽  
Graphical Form ◽  
Critical Plane ◽  
Plane Orientation ◽  
Stress States

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.

Prediction of fatigue life under multiaxial loading by using a critical plane-based model

2018 ◽  
Vol 89 (4) ◽  
pp. 629-637 ◽  
Author(s):  
Jing Li ◽  
Yuan-ying Qiu ◽  
Chun-wang Li ◽  
Zhong-ping Zhang
Keyword(s):  
Fatigue Life ◽  
Multiaxial Loading ◽  
Critical Plane

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

2018 ◽  
Vol 53 (4) ◽  
pp. 197-209 ◽  
Author(s):  
Xiao-Wei Wang ◽  
De-Guang Shang ◽  
Yu-Juan Sun
Keyword(s):  
Fatigue Life ◽  
Weight Function ◽  
Life Prediction ◽  
Function Method ◽  
Low Cycle Fatigue ◽  
Fatigue Life Prediction ◽  
Cycle Fatigue ◽  
Critical Plane ◽  
Variable Amplitude ◽  
Weight Function Method

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.

scholarly journals Fatigue life prediction for broad-band multiaxial loading with various PSD curve shapes

2012 ◽  
Vol 44 ◽  
pp. 74-88 ◽  
Author(s):  
Adam Niesłony ◽  
Milan Růžička ◽  
Jan Papuga ◽  
Aleš Hodr ◽  
Miroslav Balda ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Life Prediction ◽  
Broad Band ◽  
Fatigue Life Prediction ◽  
Multiaxial Loading
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