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Keywords: fractal
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Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 2022, 144(10): 101707.
Paper No: TRIB-22-1091
Published Online: June 6, 2022
...M. A. Al-Bukhaiti; A. Abouel-Kasem; Y. Abdelrhman; M. Heshmat; S. M. Ahmed In this research, we utilize image processing to analyze surfaces acquired from slurry-erosion tests carried out on AISI 5117 steel at various velocities and impact angles of 30 deg and 90 deg. The fractal and wavelet...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. February 2022, 144(2): 021501.
Paper No: TRIB-20-1422
Published Online: May 6, 2021
... and the characteristics between the reticle and the chuck are studied in this article. First, based on the Kogut–Etsion contact model and the Majumdar–Bhushan (MB) fractal contact model, the maximum static friction coefficient model between nano-scale surfaces was established. Then, the surface morphology parameters...
Journal Articles
Publisher: ASME
Article Type: In-Brief
J. Tribol. January 2013, 135(1): 014502.
Paper No: TRIB-12-1056
Published Online: December 20, 2012
... Processing (Analysis of Tribochemical Damages) ,” Tribol. , 13 ( 2 ), pp. 125 – 129 . 10.1023/A:1020160817603 [5] Abouel-Kasem , A. , Alturki , F. A. , and Ahmed , S. M. , 2011 , “ Fractal Analysis of Cavitation Eroded Surface in Dilute Emulsions ,” Trans. ASME, J. Tribol. , 133 , p...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 2011, 133(4): 041603.
Published Online: October 19, 2011
... fractal analysis. The results revealed that for all applied stress, the wear rates increased with increasing the sliding velocity of both samples. The wear rate of the rolled samples is greater than that of the extruded samples at the stress range from 3 to 5 MPa. However, when the stress is increased...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. October 2011, 133(4): 041403.
Published Online: October 10, 2011
...A. Abouel-Kasem; F. A. Alturki; S. M. Ahmed In the present work, the topographical images of cavitation erosion surfaces at water and oil-in-water (o/w) emulsions were quantified using fractal analysis. The oil-in-water emulsion concentrations were 2, 5 and 10 wt. %, which are in the popular range...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 2009, 131(3): 031601.
Published Online: May 22, 2009
...Abouel-Kasem; M. A. Al-Bukhaiti; K. M. Emara; S. M. Ahmed In the present work, the topographical images of slurry erosion surfaces at different impact angles were quantified using fractal analysis. The study showed that the variation of fractal value of slope of linearized power spectral density...
Journal Articles
Publisher: ASME
Article Type: Technical Briefs
J. Tribol. April 2009, 131(2): 024504.
Published Online: March 6, 2009
...Y. F. Peng; Y. B. Guo; Y. Q. Hong The strong stiction of adjacent surfaces with meniscus is a major design concern in the devices with a microsized interface. The present research concerns the elastic adhesion of rough fractal surfaces in the presence of a thin liquid film. A rough fractal surface...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Tribol. October 2007, 129(4): 735–742.
Published Online: April 28, 2007
... contact parameter and the dimensionless roughness parameter, which are both independent of the instrument resolution, thus providing a long awaited solution to the problem of instrument dependency in a traditional theory. An application to fractal-regular surfaces indicates that the influence...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Tribol. July 2007, 129(3): 461–466.
Published Online: February 16, 2007
... viscoelastic constitutive law, the standard linear solid (SLS) law. The model aims at studying the normal compliance (approach) of the punch surface, which will be assumed to be quasistatic, as a function of the applied creep load. The roughness of the punch surface is assumed to be fractal in nature...