Wear models and predictive equations: their form and content

Meng, Hailin; Ludema, Kenneth C.

doi:10.1016/0043-1648(95)90158-2

Cited by 761 publications

(288 citation statements)

References 8 publications

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“…The main factors affecting wear behavior can be summarized as the contact status, the lubrication condition, material properties and the wear history. As for the wear rate, many models and equations based on the wear mechanism have been developed where the wear volumes for different mating components were derived [23]. Among these models, Archard's wear law refers to the combination of effects in the wear behavior and wear mechanism of the UHMWPE cup sliding against the femoral metal of the artificial hip joints.…”

Section: Wear Mechanismmentioning

confidence: 99%

The computer simulation of wear behavior appearing in total hip prosthesis

Hung

Shu

et al. 2003

Computer Methods and Programs in Biomedicine

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Computer algorithms are proposed for the estimation of wear appearing in artificial hip joints using finite element analysis based on the modified Archard's wear law, contact features and an analogue wear process. A pin-on-disk plate experiment is reconstructed to assess the efficiency and validity of the algorithms proposed here. Through the successful verification of wear depth and volume loss of the pin-on-disk plate as well as the artificial hip joint, the current algorithms provide significant agreement with experiments, clinical measurements and numerical calculations and are shown to be both valid and feasible. Further investigation into the effect of femoral heads with various sizes suggests that the larger femoral head may induce larger wear volume but gives a smaller wear depth and that wear depth and volume loss are apparently nonlinearly related to the femoral head diameter. It is shown that the current algorithms are useful and helpful in understanding wear behavior for alternative or new designs of artificial hip joints and even for other analogous structures.

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Section: Wear Mechanismmentioning

confidence: 99%

The computer simulation of wear behavior appearing in total hip prosthesis

Hung

Shu

et al. 2003

Computer Methods and Programs in Biomedicine

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“…There has been extensive work done in understanding the pure corrosion and pure erosion mechanisms; [15][16][17][18][19] however, very little knowledge exists in understanding erosioncorrosion mechanisms. It is accepted that impinging particles remove deposits or the protective layer on the metal surface resulting in continuous exposure of fresh metal surface to the corrosive environment resulting in higher corrosion rates.…”

Section: Introductionmentioning

confidence: 99%

Erosion–corrosion and synergistic effects in disturbed liquid-particle flow

Malka

Nešić

Gulino

2007

Wear

122

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The present study has been conducted to investigate the interaction between corrosion and erosion processes and to quantify the synergism in realistic flow environments, including sudden pipe constrictions, sudden pipe expansions, and protrusions. Tests were conducted on AISI 1018 carbon steel using 1% wt sodium chloride (NaCl) solution purged with CO 2 as the corrosive media and silica sand as the erodent.The experiments were designed to understand whether erosion enhances corrosion or corrosion enhances erosion and to evaluate the contribution of the individual processes to the net synergism. It was observed that erosion enhances corrosion and corrosion enhances erosion, with each contributing to significant synergism; however, the dominant process was the effect of corrosion on erosion.

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“…Meng and Ludema [12] confirm, after a detailed analysis, that no single predictive equation or group of limited equations could be found for general and practical use in wear, and suggest that the -reasons include the perpetuation of erroneous and subjective expressions for the mechanisms of wear‖, and -the paucity of good experiments to verify proposed models‖. We suspect that this situation will continue for many more attempts to propose miraculous predictive equations for wear.…”

Section: Fig 1 Some Example Dependencies Of Wear Resistance For Varimentioning

confidence: 91%