Composites Research

  • 제33권4호
  • /
  • Pages.228-233
  • /
  • 2020
  • /
  • 2288-2103(pISSN)
  • /
  • 2288-2111(eISSN)
한국복합재료학회 (The Korean Society for Composite Materials)
권호 표지
DOI QR코드

DOI QR Code

연필심을 이용한 종이센서에 의한 단일 랩 전단변형률 감지능

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)
  • 투고 : 2020.03.25
  • 심사 : 2020.08.19
  • 발행 : 2020.08.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

본 논문은 유리섬유강화 복합재료(GFRC)를 사용하여 단일 랩 전단 시험을 진행하고, 단일 랩 전단 시험을 진행하면서 연필심을 이용한 종이센서(PLDPS)를 적용하였다. 복합재료의 접착은 비스페놀-A계 에폭시와 아민계 경화제를 혼합하여 접착제로 사용하였다. 접착물성의 차이를 주기 위해 각기 다른 조건에서 경화시켰고 물성이 달라진 것을 확인하였다. 연필심을 이용한 종이센서는 A4용지에 4B연필을 사용하여 제작하였다. 연필에 있는 흑연은 전기가 통하는 물질이므로 전기저항을 측정할 수 있다. 연필심을 이용한 종이센서에 단일 랩 전단 시편에 붙은 위치에 따라 전기저항의 변화를 관찰하였고, 붙이는 두 위치에 따라 전기저항의 변화가 다르게 나오는 것을 확인하였다. 또한, 랩 전단변형률에 따라서 전기 저항의 변화도 관찰하였다. 랩 전단변형률이 높으면 전기 저항 변화도 큰 것을 확인했다. 접착부분의 변형이 클수록 시편이 휘는 정도도 커져 전극 사이의 거리변화도 크게 만들기 때문이다.

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.

키워드

참고문헌

  1. Lopresto, V., Caggiano, A., and Teti, R., "High Performance Cutting of Fibre Reinforced Plastic Composite Materials," Procedia CIRP, Vol. 46, 2016, pp. 71-82. https://doi.org/10.1016/j.procir.2016.05.079
  2. Karthigeyan, P., Raja, M.S., Hariharan, R., Karthikeyan, R., and Prakash, S., "Performance Evaluation of Composite Material for Aircraft Industries," Materials Today: Proceedings, Vol. 4, No. 2, 2017, pp. 3263-3269. https://doi.org/10.1016/j.matpr.2017.02.212
  3. Kaczmar, J.W., Pietrzak, K., and Wlosinski, W., "The Production and Application of Metal Matrix Composite Materials," Journal of Materials Processing Technology, Vol. 106, No. 1-3, 2000, pp. 58-67. https://doi.org/10.1016/S0924-0136(00)00639-7
  4. Njuhovic, E., Brau, M., Wolff-Fabris, F., Starzynski, K., and Altstadt, V., "Identification of Failure Mechanisms of Metallised Glass Fibre Reinforced Composites under Tensile Loading Using Acoustic Emission Analysis," Composites Part B: Engineering, Vol. 81, 2015, pp. 1-13. https://doi.org/10.1016/j.compositesb.2015.06.018
  5. Ishikawa, T., Amaoka, K., Masubuchi, Y., Yamamoto, T., Yamanaka, A., Arai, M., and Takahashi, J., "Overview of Automotive Structural Composites Technology Developments in Japan," Composites Science and Technology, Vol. 155, 2018, pp. 221-246. https://doi.org/10.1016/j.compscitech.2017.09.015
  6. Jefferson Andrew, J., Arumugam, V., and Santulli, C., "Effect of Post-cure Temperature and Different Reinforcements in Adhesive Bonded Repair for Damaged Glass/epoxy Composites Under Multiple Quasi-static Indentation Loading," Composite Structures, Vol. 143, 2016, pp. 63-74. https://doi.org/10.1016/j.compstruct.2015.10.037
  7. Katz, O., Reches, Z., and Roegiers, J.-C., "Evaluation of Mechanical Rock Properties Using a Schmidt Hammer," International Journal of Rock Mechanics and Mining Sciences, Vol. 37, No. 4, 2000, pp. 723-728. https://doi.org/10.1016/S1365-1609(00)00004-6
  8. Goudie, A.S., "The Schmidt Hammer in Geomorphological Research," Progress in Physical Geography, Vol. 30, No. 6, 2006, pp. 703-718. https://doi.org/10.1177/0309133306071954
  9. Shimada, Y., Ando, S., Matsunaga, T., Misawa, A., Aizawa, T., Shirahata, T., and Itoi, E., "Clinical Application of Acceleration Sensor to Detect the Swing Phase of Stroke Gait in Functional Electrical Stimulation," The Tohoku Journal of Experimental Medicine, Vol. 207, No. 3, 2005, pp. 197-202. https://doi.org/10.1620/tjem.207.197
  10. Shi, E., and Perrig, A., "Designing Secure Sensor Networks," IEEE Wireless Communications, Vol. 11, No. 6, 2004, 38-43.
  11. Edamana, B., and Oldham, K.R., "A Near-Optimal Sensor Scheduling Strategy for an on-off Controller with an Expensive Sensor," IEEE/ASME Transactions on Mechatronics, Vol. 19, No. 1, 2014, pp. 158-170. https://doi.org/10.1109/TMECH.2012.2226244
  12. Wang, Z.J., Kwon, D.J., Gu, G.Y., Park, J.K., Lee, W.I., and Park, J.M., "Improvement of Interfacial Adhesion of Plasma Treated Single Carbon Fiber Reinforced CNT-Phenolic Nanocomposites by Electrical Resistance Measurement and Wettability," Journal of Adhesion and Interface, Vol. 12, No. 3, 2011, pp. 88-93.
  13. Jacobs, C.B., Peairs, M.J., and Venton, B.J., "Review: Carbon Nanotube Based Electrochemical Sensor for Biomolecules", Analytica Chimica Acta, Vol. 662, No. 2, 2010, pp. 105-127. https://doi.org/10.1016/j.aca.2010.01.009
  14. Kwon, D.J., Shin, P.S., Kim, J.H., Baek, Y.M., Park, H.S., and Park, J.M., "Optimum Condition of Pencil Drawing Paper Sensor(PDPS) for Temperature Detecting," Journal of Adhesion and Interface Vol. 18, No. 1, 2017, pp. 1-7. https://doi.org/10.17702/jai.2017.18.1.1
  15. Park, H.S., Shin, P.S., Kim, J.H., Baek, Y.M., and Park, J.M., "A New Study of Sensing and Optimum Preparation Conditions of Graphite/Different Paper Sensor for Composite Materials," Composites Research, Vol. 31, No. 2, 2018, pp. 51-56. https://doi.org/10.7234/COMPOSRES.2018.31.2.051
  16. Bond, A.M., Mahon, P.J., Schiewe, J., and Vicente-Beckett, V., "An Inexpensive and Renewable Pencil Electrode for Use in Field-based Stripping Voltammetry," Analytica Chimica Acta, Vol. 345, No. 1-3, 1997, pp. 67-74. https://doi.org/10.1016/S0003-2670(97)00102-5
  17. Noh, Y., and Ahn, I.J., "Evaluation Indicators for Green Libraries and Eco-friendliness," International Journal of Knowledge Content Development & Technology Vol. 8, No. 1, 2018, pp. 51-77. https://doi.org/10.5865/IJKCT.2018.8.1.051
  18. Park, H.S., Shin, P.S., Kim, J.H., Baek, Y.M., DeVries, K.L., and Park, J.M., "Innovation of Pencil Lead Drawn Paper Sensors (PLDPS) Using Electrical Resistance (ER) Measurement: I. Optimal Conditions of Interfacial, Mechanical, and Sensing Properties," Fibers Polymer, Vol. 21, No. 7, 2020, pp. 1560-1565. https://doi.org/10.1007/s12221-020-1151-7
  19. Park, H.S., Shin, P.S., Kim, J.H., Baek, Y.M., DeVries, K.L., and Park, J.M., "Innovation of Pencil Lead Drawn Paper Sensors (PLDPS) Using Electrical Resistance (ER) Measurement: II. Load, Micro-Damage, and Thermal Sensing on Composites by PLDPS," Fibers Polymer, Vol. 21, No. 7, 2020, pp. 1566-1572. https://doi.org/10.1007/s12221-020-1061-8