A fracture mechanics analysis of asperity cracking due to sliding contact

Xu, Hao; Komvopoulos, K.

doi:10.1016/j.ijsolstr.2019.05.005

Cited by 15 publications

(7 citation statements)

References 33 publications

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“…This is mainly due to the behavior of the 𝛩 function defined in Eq. (7) with 𝛾, as shown in Fig. 10.…”

Section: Resultsmentioning

confidence: 83%

“…For sharp cracks with 𝛾 = 0, we have 𝜆(𝛾) = 0.5 which leads to 𝑑 1∕2 0 in Eq. (7). Critical SIF 𝐾 * 𝐼𝐶 in Eqs.…”

Section: Theoretical Prediction Of Notch Fracturementioning

confidence: 99%

“…Critical SIF 𝐾 * 𝐼𝐶 in Eqs. (7), socalled the generalized SIF, for the sharp notch (𝐾 𝑉 𝐼𝐶 ) can be calculated as [29,32]:…”

Section: Theoretical Prediction Of Notch Fracturementioning

confidence: 99%

“…A fraction of asperities during sliding contact interlocks at their tips, and might fail due to interacting applied local forces [3][4][5]. Effect of contact geometry on the mode of fracture of the asperities in contact was highlighted in the recent studies [4,6,7]. Many asperities can be considered as V-shaped notches, with either sharp-or rounded-tip root.…”

Section: Introductionmentioning

confidence: 99%

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Fracture loads of sharp and blunt asperities under normal and tangential loading

Malekan

2023

Tribology International

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“…This is mainly due to the behavior of the 𝛩 function defined in Eq. (7) with 𝛾, as shown in Fig. 10.…”

Section: Resultsmentioning

confidence: 83%

“…For sharp cracks with 𝛾 = 0, we have 𝜆(𝛾) = 0.5 which leads to 𝑑 1∕2 0 in Eq. (7). Critical SIF 𝐾 * 𝐼𝐶 in Eqs.…”

Section: Theoretical Prediction Of Notch Fracturementioning

confidence: 99%

“…Critical SIF 𝐾 * 𝐼𝐶 in Eqs. (7), socalled the generalized SIF, for the sharp notch (𝐾 𝑉 𝐼𝐶 ) can be calculated as [29,32]:…”

Section: Theoretical Prediction Of Notch Fracturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fracture loads of sharp and blunt asperities under normal and tangential loading

Malekan

2023

Tribology International

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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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