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NTIS 바로가기Composites research = 복합재료, v.28 no.1, 2015년, pp.22 - 27
신평수 (Department of Materials Engineering and Convergence Technology, Gyeongsang National University) , 왕작가 (Department of Materials Engineering and Convergence Technology, Gyeongsang National University) , 권동준 (Department of Materials Engineering and Convergence Technology, Gyeongsang National University) , 최진영 (Department of Materials Engineering and Convergence Technology, Gyeongsang National University) , 이상일 (Wind Turbine Development & Engineering Team, Doosan Heavy Industries & Construction) , 박종만 (Department of Materials Engineering and Convergence Technology, Research Institute for Green Energy Convergence Technology, Gyeongsang National University)
Although it is important to have high strength of each of fiber and matrix, interface between fiber and matrix is most important. If NaCl water penetrates the interface, that area will be weak. So experiment about increasing interfacial strength is in process. In this study, the change of properties...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
유리섬유/에폭시 복합재료의 고강성을 얻기 위해 중요한 것은? | 복합재의 고강성을 얻기 위하여 매트릭스 및 섬유 각각의 물성도 중요하지만, 매트릭스와 섬유간 계면접착력이 가장 중요하다. 복합재료에 하중을 받게 되면 층과 층간의 층간 분리는 최종 파괴의 주원인이며, 발생 원인으로는 적층판 제작시 수지 분포의 불균일 경화 또는 적층판에 층간 수직 응력 및 전단응력 발생 그리고 이들의 조합으로 층과 층간에 생긴 결함의 진전으로 나타난다[8,9]. | |
복합재료 층간 분리의 발생 원인은? | 복합재의 고강성을 얻기 위하여 매트릭스 및 섬유 각각의 물성도 중요하지만, 매트릭스와 섬유간 계면접착력이 가장 중요하다. 복합재료에 하중을 받게 되면 층과 층간의 층간 분리는 최종 파괴의 주원인이며, 발생 원인으로는 적층판 제작시 수지 분포의 불균일 경화 또는 적층판에 층간 수직 응력 및 전단응력 발생 그리고 이들의 조합으로 층과 층간에 생긴 결함의 진전으로 나타난다[8,9]. 층간 분리시 복합재료 구조물의 파괴 인성은 매우 낮으므로 안전성 평가에 큰 영향을 미친다. | |
복합재 구조의 파괴 거동 조사에 중요한 것은? | 미세파괴의 규명은 복합재 구조의 파괴 거동 조사의 매우 중요한 단계이다. 이에, 음향방출은 잘 알려진 미세파괴메카니즘을 규명하는 중요한 비파괴 시험방법 중 하나이다[10,11]. |
Kwon, D.J., Wang, Z.J., Kim, J.J., Jang, K.W., Jang, K.W., and Park, J.M., "Prediction Method of Dispersion Condition for Reinforced Epoxy in Nano SiC Particles Using Capacitance Measurement," Journal of the Korean Society for Composite Materials, Vol. 26, No. 6, 2013, pp. 337-342.
Gellert, E.P., and Turley, D.M., "Seawater Immersion Ageing of Glass-Fibre Reinforced Polymer Laminates for Marine Applications," Composites: Part B, Vol. 30, 1999, pp. 1259-1265.
Kootsookos, A., and Mouritz, A.P., "Seawater Durability of Glass and Carbon-Polymer Composites," Composites Sience and Technology, Vol. 64, 2004, pp. 1503-1511.
Dong, C., and Davies, I.J., "Flexural Strength of Bidirectional Hybrid Epoxy Composites Reinforced by E Glass and T700S Carbon Fibres," Composites: Part B, Vol. 72, 2015, pp. 65-71.
Yang, H.J., Jeong, M.G., Kweon, J.H., and Choi, J.H., "Strength of Composit Single-lap Bonded Joints with Different Saltwater Moisture Contents," Journal of the Korean Society for Composite Materials, Vol. 23, No. 4, 2011, pp. 48-54.
Jeon, K.W., Shin, K.B., and Kim, J.S., "A Study on the Evaluation of Tension - Compression Fatigue Characteristics of Glass Fiber/Epoxy 4-Harness Satin Woven Laminate Composite for the Railway Bogie Application," Journal of Composite Science and Technology, Vol. 23, No. 5, 2010, pp. 22-29.
Sikarwar, R.S., Velmurugan, R., and Gupta, N.K., "Influence of Fiber Orientation and Thickness on the Response of Glass/Epoxy Composites Subjected to Impact Loading," Composites: Part B, Vol. 60, 2014, pp. 627-636.
Carra, G., and Carvelli, Valter., "Ageing of Pultruded Glass Fibre Reinforced Polymer Compsites Exposed to Combined Environmental Agents," Composite Structures, Vol. 108, 2014, pp. 1019-1026.
Karbhari, V.M., and Zhang, S., "E-Glass/Vinylester Composites in Aqueous Environments - I: Experimental Results," Applied Composite Materials, Vol. 10, 2003, pp. 19-48.
Park, J.M., Kim, D.S., and Kim, S.R., "Improvement of Interfacial Adhesion and Nondestructive Damage Evaluation for Plasma Treated PBO and Kevlar Fibers/epoxy Composites using Micromechanical Techniques and Surface Wettability," Journal of Colloid and Interface Science, Vol. 64, 2003, pp. 431-445.
Park, J.M., Kim, D.S., and Kim, S.R., "Interfacial Properties and Microfailure Degradation Mechanisms of Bioabsorbable Fibers/poly-L-lactidecomposites using Micromechanical and Test and Nondestructive Acoustic Emission," Composite Science and Technology, Vol. 63, 2003, pp. 403-419.
Moon, J.B., Kim, S.H., and Kim, C.-G., "Effects of Salt Water Environment on the Mechanical Behavior of Composites," Journal of the Korean Society for Composite Materials, Vol. 23, No. 1, 2010, pp. 44-50.
Mouritz, A.P., Kootsookos, A., and Mathys, G., "Stability of Polyester and Vinyl Ester-Based Composites in Seawater," Journal of Materials Science, Vol. 39, 2004, pp. 6073-6077.
Sagar, R.V., and Prasad, B.K.R., "An Experimental Study on Acoustic Emission Energy as a Quantitative Measure of Size Independent Specific Fracture Energy of Concrete Beams," Construction and Building Materials, Vol. 25, 2011, pp. 2349-2357.
Park, J.M., Shin, W.G., and Yoon, D.J., "A study of Interfacial Aspects of Epoxy-Based Composites Reinforced with Dual Basalt and SiC Fibres by Means of the Fragmentation and Acoustic Emission Techniques," Composites Science and Technology, Vol. 59, 1999, pp. 355-370.
Visco, A.M., Campo, N., and Cianciafara, P., "Comparison of Seawater Absorption Properties of Thermoset Resins Based Composites," Composites: Part A, Vol. 42, 2011, pp. 123-130.
Wang, Z.J., Kwon, D.J., Gu, G.Y., Lee, W.I., Park, J.K., DeVries, K.L., and Park, J.M., "Evaluation of Interfacial Properties of Atmospheric Pressure Plasma-Treated CNT-Phenolic Composites by Dual Matrix Fragmentation and Acoustic Emission Tests," Composites: Part A, Vol. 52, 2013, pp. 151-158.
Park, J.M., Wang, Z.J., Kwon, D.J., Gu, G.Y., and DeVries, K.L., "Electrical Properties of Transparent CNT and ITO Coatings on PET Substrate Including Nano-Structural Aspects," Solid-State Electronics, Vol. 79, 2013, pp. 147-151.
Lynch, M.E., Folz, D.C., and Clark, D.E., "Use of FTIR Reflectance Spectroscopy to Monitor Corrosion Mechanisms on Glass Surfaces," Journal of Non-Crystalline Solid, Vol. 353, 2007, pp. 2667-2674.
Geisler, T., Janssen, A., Scheiter, D., Stephan, T., Berndt, J., and Putnis, A., "Aqueous Corrosion of Borosilicate Glass under Acidic Conditions: A New Corrosion Mechanism," Journal of Non-Crystalline Solid, Vol. 356, 2010, pp. 1458-1465.
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