TY  - JOUR
AU  - Sántha, Péter
AU  - Tamás-Bényei, Péter
TI  - Investigation of high-performance recycled carbon fibre reinforced aluminium core sandwich structures
JF  - EXPRESS POLYMER LETTERS
J2  - EXPRESS POLYM LETT
VL  - 19
PY  - 2025
IS  - 11
SP  - 1202
EP  - 1213
PG  - 12
SN  - 1788-618X
DO  - 10.3144/expresspolymlett.2025.88
UR  - https://m2.mtmt.hu/api/publication/36349434
ID  - 36349434
N1  - Funding Agency and Grant Number: Ministry of Culture and Innovation of Hungary through the National Research, Development and Innovation Fund [BME-NVA-02]; Ministry of Culture and Innovation of Hungary through the National Research, Development and Innovation Fund [UNKP-23-5-BME-427]; Ministry of Culture and Innovation of Hungary for support from the National Research, Development and Innovation Fund [NKKP ADVANCED 149578]; National Research, Development, and Innovation Office (NRDI, Hungary) [OTKA K 146236, NKFIH FK 142517]; Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences [BO/00658/21/6]; National Research Development and Innovation Fund of the Ministry of Culture and Innovation; Budapest University of Technology and Economics; National Research, Development and Innovation Office
            Funding text: Project No. BME-NVA-02 has been implemented with support from the Ministry of Culture and Innovation of Hungary through the National Research, Development and Innovation Fund, under the TKP2021-NVA funding scheme. Project No. UNKP-23-5-BME-427 has been implemented with the support from the Ministry of Culture and Innovation of Hungary through the National Research, Development and Innovation Fund. The authors acknowledge the Ministry of Culture and Innovation of Hungary for support from the National Research, Development and Innovation Fund through grant no. NKKP ADVANCED 149578. The research reported in this paper was supported by the National Research, Development, and Innovation Office (NRDI, Hungary) through grants OTKA K 146236 and NKFIH FK 142517. P. T.-B. also acknowledges their invaluable support for the Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences (BO/00658/21/6). P. S. expresses appreciation for the support of the Doctoral Excellence Fellowship Programme (DCEP) funded by the National Research Development and Innovation Fund of the Ministry of Culture and Innovation and the Budapest University of Technology and Economics, under a grant agreement with the National Research, Development and Innovation Office.
AB  - This study examines the performance of hybrid sandwich composites with a recycled aluminium foam (AlF) core and a recycled carbon-reinforced polymer skin layer. Three composite skin configurations were examined: (i) unidirectional (UD) carbon/epoxy sheets representing aligned virgin fibre reinforcement, (ii) randomly oriented recycled carbon fibre (rCF) mats consolidated by hand layup with epoxy, and (iii) randomly oriented rCF/epoxy sheets consolidated by hot pressing. The AlF core structure analysis revealed a low density and uniform open-cell structure ideal for lightweight cores. Comprehensive testing revealed significant performance differences between skin types and manufacturing methods, underscoring the critical role of processing – particularly hot pressing – in enhancing fibre compaction, matrix consolidation and interfacial bonding between the core and facesheets. Unidirectional carbon fibre skins achieved the highest flexural stiffness. In contrast, hot-pressed rCF mats provided the most balanced properties, combining high compression, damage resistance, and flexural strength, due to improved consolidation and reduced porosity in the face sheets. Thus, hybrid sandwich structures fabricated from recycled AlF core and rCF represent a viable, environmentally responsible alternative for aerospace, automotive, and protective applications requiring lightweight, high-strength, and damage-resistant materials.
LA  - English
DB  - MTMT
ER  -