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논문 기본 정보

자료유형
학술저널
저자정보
Donghoon Kang (Korea Railroad Research Institute) Heonyoung Kim (Korea Railroad Research Institute) Myeongcheol Kang (Jeonbuk National University) Mun-Young Hwang (Heonyoung Kim) Lae-Hyong Kang (Heonyoung Kim) Chulmin Joo (Yonsei University)
저널정보
국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.27 No.1
발행연도
2021.1
수록면
53 - 60 (8page)

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Gravel scattering, which occurs from snow-ice that develops on trains during winter, is a major cause of damage to train parts. An exothermic technology that uses copper wires to solve the problem of gravel scattering is ineffective on the snow-ice produced on the surface of the trains. Therefore, studies have been conducted to overcome the weaknesses of the conventional methods and to develop a paint-type surface exothermic technology that can be efficiently applied to complicated structures. However, multi-layered paint-type coatings can lead to problems such as a delamination or exfoliation of the layers when used for a long period of time within an environment undergoing variations in temperature. Therefore, this study assesses the long-term effects of temperature on multi-layered exothermic coating technology based on nano-solutions for an application of self-heating function on railway infrastructures. To do so, we developed an exothermic coating test specimen using the paint applied to train cars and commercial nano-solutions. To conduct an experiment on accelerated aging, the specimen was subjected to regular changes in the temperature within a thermal chamber. The results revealed that there is a nonlinear decline in the performance as the specimen is worn out in comparison to the exothermic performance achieved during the early stages. Further, it is possible to identify the structural causes of the decline in performance from the specimen applied thermal load by analyzing the morphology. However, it is possible to observe a high stability from noninvasive overheating or short-circuits based on the structural changes to the coating, which are observed during the assessment of the exothermic uniformity. Therefore, it can be concluded that a multi-layer exothermic coating, which can be effectively applied as an exothermic technology based on self-heating surfaces, can be applied for a long period to prevent disasters from freezing or snow-ice in trains during winter.
#long-term reliability #exothermic coating #self-heating surfaces #cyclic thermal load #exothermic performance

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참고문헌 (23)

참고문헌 신청
D I Arun / 2019 / Experimental and Monte Carlo simulation studies on percolation behaviour of a shape memory polyurethane carbon black nanocomposite / Smart Materials and Structures 28(5):055010 Crossref A Bhattacharyya / 2007 / Energy efficient graphite–polyurethane electrically conductive coatings for thermally actuated smart materials / Smart Materials and Structures 16(1):S187~S195 Crossref Cong Du / 2019 / A review of railway infrastructure monitoring using fiber optic sensors / Sensors and Actuators A: Physical 303:111728 Crossref Lei Guo / 2013 / Research on On-Line Anti-Icing Technology for Carenary along Electrified Railway / Advanced Materials Research 676:321~324 Crossref Rixing Hu / 2018 / Transient hot wire measures thermophysical properties of organic foam thermal insulation materials / Experimental Thermal and Fluid Science 98:674~682 Crossref

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