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http://hdl.handle.net/10397/78453
Title: | Non-contact and real-time measurement of kolsky bar with temporal speckle interferometry | Authors: | Yang, SW Gao, Z Ruan, HH Gao, CJ Wang, X Sun, X Wen, X |
Issue Date: | 2018 | Source: | Applied sciences, May 2018, v. 8, no. 5, 808 | Abstract: | In this paper, a new non-contact and real-time measurement system for Kolsky bars is presented. This system uses two sets of temporal speckle interferometry in-plane displacement measurement devices to replace two strain gauges of conventional Kolsky bars. The in-plane displacement measurement of the Kolsky bar is mainly intended to provide a new test method for the dynamic mechanical properties of small-size material samples with diameters below 2 mm. This method is non-contact, does not require any intermediate medium, and can make the Kolsky bar applicable to characterizing the dynamic mechanical properties of materials under higher strain rates and smaller size conditions. The measuring devices and principles are described. In addition, a preliminary experiment is carried out to demonstrate the performance of this new device. | Keywords: | Kolsky bar Speckle In-plane displacement measurement Wavelet transform Dynamic mechanical properties |
Publisher: | Molecular Diversity Preservation International (MDPI) | Journal: | Applied sciences | ISSN: | 2076-3417 | DOI: | 10.3390/app8050808 | Rights: | © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access
article distributed under the terms and conditions of the Creative Commons Attribution
(CC BY) license (http://creativecommons.org/licenses/by/4.0/). The following publication Yang, S., Gao, Z., Ruan, H., Gao, C., Wang, X., Sun, X., & Wen, X. (2018). Non-contact and real-time measurement of kolsky bar with temporal speckle interferometry. Applied Sciences (Switzerland), 8(5), 808 is available at https://dx.doi.org/10.3390/app8050808 |
Appears in Collections: | Journal/Magazine Article |
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