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Updated: Jun 24, 2025

Micro/Nano-scale Strain Distribution Measurement from Sampling Moiré Fringes
Published on: May 23, 2017
Visualization of strain distribution in rubber bulk during friction
Toshiaki Nishi1, Kyohei Ueno2, Tomohiro Nomoto2
1Graduate School of Engineering, Tohoku University, 6-6-01, Aoba, Aramaki-Aza, Aoba-ku, Sendai, Miyagi, 980-8579, Japan. toshiaki.nishi.b3@tohoku.ac.jp.
Abstract:
This study employed a digital image correlation method (DICM) to experimentally quantify horizontal strain distribution in silicone rubber bulk during horizontal displacement against a stainless-steel sphere with/without glycerol. The strain distribution at different depth levels was measured by capturing the position of white powders in transparent rubber bulk. The experimental results indicated that each point in the rubber bulk moved while describing a horizontal loop during horizontal displacement depending on the position and lubrication conditions. This caused changes in the horizontal strain during horizontal displacement. These results suggest that the hysteresis term could be caused by changes in the vertical and horizontal strains.
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