Analysis of Stresses Induced by Dynamic Load Head-Disk Contacts

[+] Author and Article Information
Ta-Chang Fu, David B. Bogy

Computer Mechanics Laboratory, Department of Mechanical Engineering, University of California, Berkeley, CA 94720

J. Tribol 122(1), 233-237 (Jun 30, 1999) (5 pages) doi:10.1115/1.555348 History: Received February 04, 1999; Revised June 30, 1999
Copyright © 2000 by ASME
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Grahic Jump Location
A slider contacts the disk surface during dynamic loading
Grahic Jump Location
Laser beam configuration for spacing measurement
Grahic Jump Location
(a) slider-disk relative velocity (−vz) during the loading process measured at the slider’s corner which contacted the disk, using LDV, (b) relative velocity in the vicinity of the loading point, or the first head-disk contact point, and (c) relative spacing integrated from the LDV-measured data given in Fig. 4(b)
Grahic Jump Location
(a) maximum compression on the disk surface, and (b) the maximum impact stress and contact force during dynamic load head-disk impact. The applied head loading speed was 50 mm/s in Case 1 and 110 mm/s in Case 2.



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