Hybrid composites of aligned discontinuous carbon fibers and self-reinforced polypropylene under tensile loading
| Autor: | Jun Tang, Marco L. Longana, HaNa Yu, Yentl Swolfs, Stepan Vladimirovitch Lomov, Larissa Gorbatikh, Michael R Wisnom |
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| Rok vydání: | 2019 |
| Předmět: |
Technology
Materials science Materials Science 02 engineering and technology Bristol Composites Institute ACCIS 010402 general chemistry Discontinuous reinforcement 01 natural sciences chemistry.chemical_compound Engineering Brittleness Fragmentation Ultimate tensile strength Fiber Composite material Ductility Stress concentration Polypropylene Science & Technology Delamination MECHANICAL-PROPERTIES 021001 nanoscience & nanotechnology Hybrid 0104 chemical sciences Engineering Manufacturing chemistry Mechanics of Materials Materials Science Composites HIGH-PERFORMANCE PSEUDO-DUCTILITY Ceramics and Composites 0210 nano-technology Layer (electronics) HYBRIDIZATION BEHAVIOR |
| Zdroj: | Tang, J, Swolfs, Y, Longana, M, Yu, H, Wisnom, M R, Lomov, S & Gorbatikh, L 2019, ' Hybrid composites of aligned discontinuous carbon fibers and self-reinforced polypropylene under tensile loading ', Composites Part A-Applied Science and Manufacturing, vol. 123, pp. 97-107 . https://doi.org/10.1016/j.compositesa.2019.05.003 Tang, J, Swolfs, Y, Longana, M, Yu, H, Wisnom, M, Lomov, S V & Gorbatikh, L 2019, ' Hybrid composites of aligned discontinuous carbon fibers and self-reinforced polypropylene under tensile loading ', Composites Part A: Applied Science and Manufacturing, vol. 123, pp. 97-107 . https://doi.org/10.1016/j.compositesa.2019.05.003 |
| ISSN: | 1359-835X |
| DOI: | 10.1016/j.compositesa.2019.05.003 |
| Popis: | © 2019 Elsevier Ltd Highly aligned discontinuous fiber composites have demonstrated mechanical properties comparable to those of unidirectional continuous fiber composites. However, their ductility is still limited by the intrinsic brittleness of the fibers and stress concentrations at the fiber ends. Hybridization of aligned discontinuous carbon fibers (ADCF) with self-reinforced polypropylene (SRPP) is a promising strategy to achieve a balanced performance in terms of stiffness, provided by the ADCF, and ductility, delivered by SRPP. The current work focuses on interlayer hybridization of these materials and their tensile behavior as a function of different material parameters. Effects of the carbon layer thickness, carbon/SRPP layer thickness ratio, layer dispersion and interface adhesion are investigated. The carbon fiber misalignment is characterized using X-ray computed tomography to predict the modulus of the aligned discontinuous carbon fiber layer. The hybrids exhibit a gradual tensile failure with high pseudo-ductile strain of above 10% facilitated by multiple carbon layer failures (layer fragmentation) and dispersed delaminations. At the microscopic scale, the carbon layer fails mainly through interfacial debonding and fiber pull-out. ispartof: COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING vol:123 pages:97-107 status: published |
| Databáze: | OpenAIRE |
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