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Proceedings Paper

Effect of ultrasonic vibration on wedge indentation of a model elasto-viscoplastic material
Author(s): Zhihong Huang; Margaret Lucas; Michael J. Adams
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Paper Abstract

A wedge indentation test has been carried out, in which an ultrasonic vibration was superimposed at a frequency of 20 kHz to investigate the effects of ultrasonic vibration on the indentation mechanics of Plasticine. A finite element simulation was employed as basis for interpreting the experimental data. The model incorporated material and geometric non-linearity and the slide line method for modeling contact problems. The finite element results show that stress superposition only accounts for part of the load reduction measured under superimposed ultrasonic vibration, and that there are no temperature changes during the process. Consequently, the reduction in indentation load may be attributed to a combination of stress superposition and friction reduction.

Paper Details

Date Published: 29 May 2002
PDF: 4 pages
Proc. SPIE 4537, Third International Conference on Experimental Mechanics, (29 May 2002); doi: 10.1117/12.468766
Show Author Affiliations
Zhihong Huang, Univ. of Glasgow (United Kingdom)
Margaret Lucas, Univ. of Glasgow (United Kingdom)
Michael J. Adams, Unilever Research (United Kingdom)

Published in SPIE Proceedings Vol. 4537:
Third International Conference on Experimental Mechanics

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