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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 19 — Sep. 13, 2010
  • pp: 19713–19723

Magnetic field effects on shear and normal stresses in magnetorheological finishing

John C. Lambropoulos, Chunlin Miao, and Stephen D. Jacobs  »View Author Affiliations


Optics Express, Vol. 18, Issue 19, pp. 19713-19723 (2010)
http://dx.doi.org/10.1364/OE.18.019713


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Abstract

We use a recent experimental technique to measure in situ shear and normal stresses during magnetorheological finishing (MRF) of a borosilicate glass over a range of magnetic fields. At low fields shear stresses increase with magnetic field, but become field-independent at higher magnetic fields. Micromechanical models of formation of magnetic particle chains suggest a complex behavior of magnetorheological (MR) fluids that combines fluid- and solid-like responses. We discuss the hypothesis that, at higher fields, slip occurs between magnetic particle chains and the immersed glass part, while the normal stress is governed by the MRF ribbon elasticity.

© 2010 OSA

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials

ToC Category:
Optical Design and Fabrication

History
Original Manuscript: June 15, 2010
Revised Manuscript: July 16, 2010
Manuscript Accepted: July 16, 2010
Published: September 1, 2010

Citation
John C. Lambropoulos, Chunlin Miao, and Stephen D. Jacobs, "Magnetic field effects on shear and normal stresses in magnetorheological finishing," Opt. Express 18, 19713-19723 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-19-19713


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References

  1. C. Miao, S. N. Shafrir, J. C. Lambropoulos, J. Mici, and S. D. Jacobs, “Shear stress in magnetorheological finishing for glasses,” Appl. Opt. 48(13), 2585–2594 (2009). [CrossRef] [PubMed]
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