Accounting for microstructure sensitivity and plasticity in life prediction of heavily loaded contacts under rolling contact fatigue

2019 ◽  
Vol 43 (3) ◽  
pp. 539-549
Author(s):  
Amith Adoor Cheenady ◽  
Nagaraj K. Arakere ◽  
Nikhil D. Londhe
Keyword(s):  
Life Prediction ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact

A New Approach Towards Life Prediction of Case Hardened Bearing Steels Subjected to Rolling Contact Fatigue

2017 ◽  
Vol 6 (4) ◽  
pp. 20160099
Author(s):  
Abir Bhattacharyya ◽  
Nikhil Londhe ◽  
Nagaraj Arakere ◽  
Ghatu Subhash
Keyword(s):  
Life Prediction ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
New Approach ◽  
Bearing Steels

Numerical Modeling of Distributed Inhomogeneities and Their Effect on Rolling-Contact Fatigue Life

2014 ◽  
Vol 137 (1) ◽  
Author(s):  
Qinghua Zhou ◽  
Lechun Xie ◽  
Xiaoqing Jin ◽  
Zhanjiang Wang ◽  
Jiaxu Wang ◽  
...  
Keyword(s):  
Numerical Solution ◽  
Life Prediction ◽  
Solution Method ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
Inhomogeneous Materials ◽  
Equivalent Inclusion Method ◽  
Contact Fatigue Life ◽  
Influence Radius

The present work proposes a new efficient numerical solution method based on Eshelby's equivalent inclusion method (EIM) to study the influence of distributed inhomogeneities on the contact of inhomogeneous materials. Benchmark comparisons with the results obtained with an existing numerical method and the finite element method (FEM) demonstrate the accuracy and efficiency of the proposed solution method. An effective influence radius is defined to quantify the scope of influence for inhomogeneities, and the biconjugate gradient stabilized method (Bi-CGSTAB) is introduced to determine the eigenstrains of a large number of inclusions efficiently. Integrated with a rolling-contact fatigue (RCF) life prediction model, the proposed numerical solution is applied to investigate the RCF life of (TiB + TiC)/Ti-6Al-4V composites, and the results are compared with those of a group of RCF tests, revealing that the presence of the reinforcements causes reduction in the RCF lives of the composites. The comparison illustrates the capability of the proposed solution method on RCF life prediction for inhomogeneous materials.

Numerical Simulation of Material Sub-Surface Defects in Rolling Contact Fatigue

2005 ◽  
Author(s):  
M. Taraf ◽  
M. F. Ghanameh ◽  
M. Mliha Touati ◽  
O. Oussouaddi ◽  
A. Zeghloul
Keyword(s):  
Numerical Simulation ◽  
Life Prediction ◽  
Surface Defects ◽  
Rolling Contact Fatigue ◽  
Fatigue Crack Initiation ◽  
Contact Fatigue ◽  
Multiaxial Fatigue ◽  
Rolling Contact ◽  
Contact Fatigue Life ◽  
Four Levels

To ensure the safety and of reducing the costs of maintenances in railways systems, it is necessary to evaluate the life prediction of fatigue crack initiation in rolling contact fatigue starting from the defects. The influence of defects on the rolling contact fatigue was studied, we simulated two types of geometry of defect (circular and elliptic) and also we studied the influence of defects clusters. The stresses and deformations were analyzed in the vicinity of the defect. Calculations were carried out with four levels of loading with the code of finite elements ABAQUS-standard (version 6.3). The fatigue impact was evaluated by using the multiaxial fatigue parameter to estimate the rolling contact fatigue life.

Load Ratings and Fatigue Life Prediction for Ball and Roller Bearings

1970 ◽  
Vol 92 (1) ◽  
pp. 16-20 ◽  
Author(s):  
J. I. McCool
Keyword(s):  
Environmental Variables ◽  
Life Prediction ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Bearing ◽  
Rolling Contact ◽  
Load Rating ◽  
Bearing Load ◽  
Simple Generalization ◽  
Practical Life

A review of current rolling bearing load rating and life prediction practices is given, based on the ASA standard method. Experimental results show the existence of life-factors in addition to those encompassed in the ASA standard. A more general rolling contact fatigue theory is sketched but is not yet at a stage where it can be applied to practical life calculations. Therefore a simple generalization of ASA life formulas is proposed for practical use, which accounts for material and environmental variables by multiplicative factors and permits life prediction for any desired reliability using another, tabulated factor.

Presentation of a mesoscopic model for life prediction in rolling contact fatigue (RCF)

2015 ◽  
Vol 39 (3-4) ◽  
pp. 193-200
Author(s):  
Jean-Philippe Noyel ◽  
Philippe Jacquet ◽  
Fabrice Ville ◽  
Anthony Gravouille ◽  
Christophe Changenet
Keyword(s):  
Life Prediction ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
Mesoscopic Model
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