Metal-alike polymer composites: The effect of inter-layer content on the pseudo-ductile behaviour of carbon fibre/epoxy resin materials
Open accessAbstract
With interfacially engineered pseudo-ductile carbon fibre reinforced polymer composites, a higher energy absorption capacity and metal-like stress-strain response can be achieved during failure. Due to incorporated inter-layer additives deposited with fused filament fabrication, locally weakened zones can be printed on the surface of the reinforcing material, which provides better energy absorption capability during the composite laminates’ damage process by the alteration of crack propagation. The reason for this phenomenon is that cracks near the inter-layered zones require more energy to propagate, which delays the onset of final failure in the form of local damage. The modified layers are then infiltrated with an amine-cured epoxy by vacuum assisted infusion. The change in pseudo-ductile behaviour as a function of the interfacial additive content was investigated, along with the change in mechanical properties. The stress-strain relationship was determined by various tests, quasi-static and dynamic, from unmodified composites (0% interlayer used) up to 100% interlayer content (i.e. polymer film) between the matrix and the reinforcement. We have investigated a method to repair the specimens after the bending tests via melting the thermoplastic interlayer. The results show that with the use of interlayer material, the critical stress intensity factor increased, and ductile behaviour improved thanks to the altered crack propagation.
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PCL can be used to create a weakened bond between matrix and reinforcement.
“We used poly(ɛ-caprolactone) PCL as a surface modifier, which can be used to create a weakened bond between the matrix and the reinforcement.”
From Modeling of the Healing Process of Polycaprolactone‐Interleaved Carbon Fiber–Reinforced Composites (2025) · cites this paper as [32]
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Research works printed but not linked: 1
- G. Szebényi, T. Czigány, B. Magyar, J. Karger-Kocsis, 3D printing-assisted interphase engineering of polymer composites, Concept Feasib. 11 (2017) 525-530.
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Modeling of the Healing Process of Polycaprolactone‐Interleaved Carbon Fiber–Reinforced Composites
Magyar, B., Czigány, T., Török, D., Marton, G. Z., Balogh, F., & Szebényi, G. (2025) · Polymer Composites · doi:10.1002/pc.30070 · Cited by 3 · see citing works
“We chose this based on our previous experimental results [32].”
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- Authors
- Magyar, B., Czigany, T., & Szebényi, G.
- Affiliations
- Budapest University of Technology and Economics (HU)
- Corresponding author
- Szebényi, G.
- Venue
- Composites Science and Technology
- Publisher
- Elsevier BV
- Published
- 2021-10
- Volume
- 215
- Pages
- 109002
- ISSN
- 0266-3538 (ISSN-L)
- OpenAlex
- W3197301660
- Cited by
- 18
- References
- 27
- Citations by year
- 2026: 3 · 2025: 4 · 2024: 6 · 2023: 3 · 2022: 2
- FWCI
- 1.35
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Composites Science and Technology (publishedVersion, cc-by-nc-nd)
- Repository of the Academy's Library (Library of the Hungarian Academy of Sciences) (acceptedVersion)
- Funders
- Nemzeti Kutatási Fejlesztési és Innovációs Hivatal (NVKP_16‐1‐2016‐0046, NKFIH FK 124352, 124352, TKP2020 IES, NVKP_16, TKP2020)
- Innovációs és Technológiai Minisztérium (TKP2020 IES, TKP2020, NVKP_16)
- Nemzeti Kutatási, Fejlesztési és Innovaciós Alap (TKP2020, TKP2020 IES, NVKP_16-1-2016-0046)
- National Research, Development and Innovation Office (TKP2020 IES, FK 124352, TKP2020)
- Topics
- Physical Sciences › Engineering › Mechanics of Materials › Mechanical Behavior of Composites
- Physical Sciences › Engineering › Mechanical Engineering › Fiber-reinforced polymer composites
- Physical Sciences › Engineering › Mechanical Engineering › Epoxy Resin Curing Processes
- Keywords
- carbon fiber reinforced epoxy, interface engineering, energy absorption, crack propagation, fused deposition modeling, amine-cured epoxy, critical stress intensity factor, damage tolerance
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