Finite element modelling of subsurface mode II cracks under contact loads

Bastias, P.C.; Hahn, G. T.; Rubin, C.A.

doi:10.1016/0013-7944(89)90062-3

Cited by 22 publications

(6 citation statements)

References 23 publications

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“…Similar 2D FE models were then developed in Refs. [ 36 , 37 , 38 , 39 , 40 ] in the following decades with either an LEFM or elastic-plastic approach to investigate the subsurface crack growth. However, all these works suffer from the need to define a crack a priori, limiting the initial conditions of the simulation.…”

Section: Modeling Adhesive Wear At Asperity Levelmentioning

confidence: 99%

Modeling Adhesive Wear in Asperity and Rough Surface Contacts: A Review

2022

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Wear is one of the most fundamental topics in tribology and adhesive wear is argued as the least avoidable wear type. Numerical techniques have allowed advances in more realistic simulations of adhesive wear mechanisms and promoted our understanding of it. This paper reviews the classic work on wear modeling by Archard and Rabinowicz, followed by a comprehensive summary of the adhesive wear numerical models and techniques based on physical parameters. The studies on wear mechanisms at the asperity level and rough surfaces are separately presented. Different models and their key findings are presented according to the method type. The advantages and deficiencies of these models are stated and future work, such as considering more realistic geometries and material properties for adhesive wear modeling, is suggested.

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Section: Modeling Adhesive Wear At Asperity Levelmentioning

confidence: 99%

Modeling Adhesive Wear in Asperity and Rough Surface Contacts: A Review

2022

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“…At the crack tip a, the displacement jump Au,(x,) is equal to zero, and at node b , it can be calculated via equation (4) from the displacement jumps at node a, (rn = N , + 1).…”

Section: )mentioning

confidence: 99%

Frictional contact problems of kinked cracks modelled by a boundary integral method

Zang

Gudmundson

1991

Numerical Meth Engineering

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“…Most studies consider two-dimensional cracks in a half-space subjected to Hertzian pressure distribution between two cylinders with parallel axes, also considering the effect of friction between the cylinders in contact and moving with respect to the crack: for example Keer et al [2] find the solution of this case and study the possible direction of propagation of the crack. More recently, Bastias et al [3], Lunden [4], Komvopoulos and Cho [5], by using the finite element method (FEM), solved the same problem and also demonstrated the potential of FEM in achieving accurate solutions in cases not dealt with previously. Kaneta et al [6] proposed a 3-D approach, based on the Body Force Method, enabling the calculation of the K for subsurface circular cracks in an infinite semi-space subjected to normal and tangential Hertzian pressure distributions, by considering the effect of the friction between crack faces as well.…”

Section: Introductionmentioning

confidence: 99%

Propagation of Sub-surface Cracks in Railway Wheels for Wear-induced Conformal Contacts

Pau

Leban

Guagliano

2010

JMTL

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The ability to predict the criticality of internal cracks in railway wheels requires accurate knowledge of stress intensity factors K I , K II , K III under contact loads. These factors depend both on the total load acting on the wheel and on how the load is transmitted through the wheel/rail interface, that is to say, they depends on the pressure distribution between wheel and rail. However, till today the solutions commonly used consider a theoretical (Hertzian) pressure distribution, even though the real contact patch may be far different for most of the lifespan of the wheel due to wear or to the dynamic conditions. In this paper an approach is developed with the aim of solving the case of an internally cracked wheel subjected to an arbitrary contact patch and pressure distribution. In particular, attention is focused on the case of hollow wear, which makes it possible to obtain very conformal contacts. The results are discussed and compared with the analytical solutions that consider Hertzian pressure distributions with the same total load.

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Finite element modelling of subsurface mode II cracks under contact loads

Cited by 22 publications

References 23 publications

Modeling Adhesive Wear in Asperity and Rough Surface Contacts: A Review

Modeling Adhesive Wear in Asperity and Rough Surface Contacts: A Review

Frictional contact problems of kinked cracks modelled by a boundary integral method

Propagation of Sub-surface Cracks in Railway Wheels for Wear-induced Conformal Contacts

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