Damage sensing, mechanical and interfacial properties of resins suitable for new CFRP rope for elevator applications
| Autor: | Jong-Hyun Kim, K. Lawrence DeVries, Il-Jun Kwon, Joung-Man Park, Dong-Jun Kwon, Sungmin Park |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Mechanical Engineering 02 engineering and technology Epoxy 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Fatigue limit Industrial and Manufacturing Engineering 0104 chemical sciences Contact angle Flexural strength Mechanics of Materials Pultrusion visual_art Ultimate tensile strength Ceramics and Composites Shear strength visual_art.visual_art_medium Composite material 0210 nano-technology Rope |
| Zdroj: | Composites Part B: Engineering. 157:259-265 |
| ISSN: | 1359-8368 |
| DOI: | 10.1016/j.compositesb.2018.08.049 |
| Popis: | The evaluation of damage sensing for flexural, interfacial and fatigue conditions was studied for carbon fiber reinforces plastic (CFRP) rope, with 4 different formulations of epoxy resin. Thermal analysis and tensile tests were used to investigate the thermal and mechanical properties for different epoxy formulations. Using these experimental results along with the empirical equation between tensile strength, glass transition temperature, T g , and enthalpy, ΔH, optimum conditions for the epoxy formulations were found. Eddy current and static contact angle measurements were made to evaluate the wettability of epoxy into the carbon fibers with the different epoxy types. Flexural strength, fatigue strength and inter-laminar shear strength (ILSS) were evaluated for manufactured CFRP rope via pultrusion process. Changed ratio of electrical resistance (ER) of CFRP rope were measure during flexural testing, for signs of micro-cracking leading up to final fracture. The signal of CFRP rope were measured by changes in electrical resistance (ER) to predict the fracture failure. From the results of these studies it was concluded that an acid anhydride-based epoxy was the optimal epoxy formulation for manufacture of CFRP rope. |
| Databáze: | OpenAIRE |
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