An analytical model for B-stage joining and co-curing of carbon fibre epoxy composites |
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| Affiliation: | 1. Complex Materials Group, Department of Materials, ETH Zürich, Vladimir-Prelog Weg 5, 8093 Zurich, Switzerland;2. Institute of Polymer Engineering, FHNW University of Applied Sciences and Arts Northwestern Switzerland, Klosterzelgstrasse 2, 5210 Windisch, Switzerland;1. Department of Chemical and Materials Engineering, Tamkang University, No.151, Yingzhuan Rd., Tamsui Dist., New Taipei City, 25137, Taiwan;2. Energy and Opto-Electronic Materials Research Center, Tamkang University, No.151, Yingzhuan Rd., Tamsui Dist., New Taipei City, 25137, Taiwan;1. Department of Engineering for Innovation, University of Salento, Via per Monteroni, 73100 Lecce, Italy;2. Aerospace Structures and Materials Department, Delft University of Technology, Kluyverweg 1, 2629HS Delft, The Netherlands;3. Department of Materials and Structures Engineering, Technologies and Processes Area, Consorzio CETMA, SS7-Km706+300, 72100 Brindisi, Italy;1. School of Aeronautics and Astronautics, Purdue University, 701 W. Stadium Ave., Armstrong Hall of Engineering, West Lafayette, IN 47907, United States;2. School of Aeronautics and Astronautics, Schools of Materials Engineering and Chemical Engineering, Purdue University, 701 W. Stadium Ave., Armstrong Hall of Engineering, West Lafayette, IN 47907, United States;3. Department of Macromolecular Science and Engineering, Case School of Engineering, Case Western Reserve University, 2100 Adelbert Road, Kent Hale Smith Building, Cleveland, OH 44106-7202, United States |
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| Abstract: | The objective of this paper was to develop cure kinetic models to describe the B-stage curing and co-curing assembly of carbon fibre reinforced thermosetting polymer (CFRP) composites. Starting from the analytical model, temperature cycles and experimental procedures are developed to join a B-stage CFRP part to a reinforcing B-stage CFRP patch for local reinforcement. Our results show that by using the analytical model, one may precisely describe the cure reaction and join the composites without any additional adhesive. The co-cured composites were successfully manufactured with stable fibre volume fractions and glass transition temperatures between the two sub-components. Additionally, merits of the process, such as modifying reinforcing areas locally, or formation of net shape detail are discussed. |
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| Keywords: | A. Thermosetting resin B. Cure behaviour C. Process simulation E. Assembly |
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