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http://dx.doi.org/10.7234/composres.2020.33.4.228

Strain Sensing of Single Lap Shear using Pencil Lead Drawn Paper Sensor (PLDPS)  

Yoo, Ji-Hoon (Department of Materials Science and Engineering, Gyeongsang National University)
Shin, Pyeong-Su (Department of Materials Engineering and Convergence Technology, Research Institute for Green Energy Convergence Technology, Gyeongsang National University)
Kim, Jong-Hyun (Department of Materials Engineering and Convergence Technology, Research Institute for Green Energy Convergence Technology, Gyeongsang National University)
Lee, Sang-Il (Institute of Offshore Wind Energy, Kunsan National University)
Park, Joung-Man (Department of Materials Engineering and Convergence Technology, Research Institute for Green Energy Convergence Technology)
Publication Information
Composites Research / v.33, no.4, 2020 , pp. 228-233 More about this Journal
Abstract
In this paper, a single lap shear test was performed using a glass fiber reinforced composite material (GFRC). Pencil lead drawn paper sensor (PLDPS) was applied for single lap shear test being performed. Bisphenol-A epoxy and amine hardener were used as adhesives combining with composite materials. To make a difference in adhesive properties, the adhesive was cured under different conditions. PLDPS was made of a 4B pencil on A4 paper. Because graphite in a pencil was an electrically conductive substance, electric resistance (ER) could be measured. A change in ER was observed by a position where a PLDPS was attached to single lap shear specimens. It was confirmed that the change in ER was different depending on two attached positions and was observed by lap shear strain as well. In case the lap shear strain was large, the change in ER of PLDPS was high. This was because the larger the extension of the adhesive part, the larger the degree of bending of the specimen and thus the larger the distance change between two electrodes.
Keywords
Paper sensor; Graphite; Lap shear test; Electrical resistance;
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Times Cited By KSCI : 4  (Citation Analysis)
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