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BRIEF NOTES

Finite Element Analysis of Brittle Cracking due to Single Grit Rotating Scratch

[+] Author and Article Information
G. Subhash, W. Zhang

Department of Mechanical Engineering–Engineering Mechanics, Michigan Technological University, Houghton, MI 49931

J. Appl. Mech 70(1), 147-151 (Jan 23, 2003) (5 pages) doi:10.1115/1.1526119 History: Received February 01, 2001; Revised July 26, 2002; Online January 23, 2003
Copyright © 2003 by ASME
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Figures

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Contours of evolved damage zone ud due to a scratch at velocity 31 m/s and a duration of 76.7 μs. (a) Top view, (b) side view, and (c) the resulting tangential and normal force profiles.  
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Contours of evolved damage zone ud as a result of a scratch at velocity 209 m/s and a duration of 11.5 μs. (a) Top view, (b) side view, and (c) the resulting tangential and normal force profiles. Here, L and M denotes lateral damage size and median damage size, respectively.
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Plot of induced damage zone size as a function of the brittleness parameter (EY/σf2)1/3 indicating that damage zone size increases linearly with brittleness parameter (depth of cut is 30 microns)
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The relationship between the induced damage zone size and the maximum depth of cut revealing that the scratching induced damage zone size is proportional to the imposed maximum depth of cut
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The relationship between total material removal volume during scratch and the brittleness parameter revealing that brittleness parameter has marginal effect on the material removal
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The plot of total removed volume of material versus the squared maximum depth of cut suggesting material removal strongly depends on the maximum depth of cut

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