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Belo Gomes Brito, C. (author), Teuwen, Julie J.E. (author), Dransfeld, C.A. (author), Villegas, I.F. (author)This paper evaluates the potential of changing the welding force and the compliance of the energy director (ED) to reduce the effects caused by misaligned adherends, which were: increased through-thickness heating, reduced size of welded area and increased heating time. In the methodology that was followed, we welded adherends misaligned by...journal article 2023
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Ogugua, C.J. (author), Anton, S.V. (author), Tripathi, A.P. (author), Larrabeiti, Miguel Dominguez (author), van Hees, S.O. (author), Sinke, J. (author), Dransfeld, C.A. (author)Autoclave curing is one of the most energy consuming processes in manufacturing carbon fibre reinforced polymers. In order to improve the energy efficiency, one needs to understand energy usage in an autoclave and factors that influence it. This work presents two thermodynamic based models for estimating energy consumption in an autoclave....journal article 2023
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Werlen, Vincent (author), Vocke, Richard (author), Brauner, Christian (author), Dransfeld, C.A. (author), Michaud, Véronique (author), Rytka, Christian (author)A new model is proposed for the consolidation of hybrid textiles, in which air entrapment and dissolution are considered. One of the key parameters is tow permeability, which is described by the analytical model of Gebart and validated at very high fibre volume fractions by direct tow permeability measurement. The model also takes into...journal article 2023
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Liu, S. (author), Sinke, J. (author), Dransfeld, C.A. (author)The bias-extension test is one of the test methods to characterise the intra-ply shear behaviour of continuous fibre reinforced composites including fabrics and unidirectional (UD) materials. For the determination of the major mechanical properties of metals, often a uniaxial tensile test is used. Combination of these two methods for the...journal article 2023
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Teuwen, Julie J.E. (author), Farooq, U. (author), Alderliesten, R.C. (author), Dransfeld, C.A. (author)Toughness of epoxies is commonly improved by adding thermoplastic phases, which is achieved through dissolution and phase separation at the microscale. However, little is known about the synergistic effects of toughening phases on multiple scales. Therefore, here, we study the toughening of epoxies with layered poly(ether imide) (PEI) structures...journal article 2023
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Quan, D. (author), Liu, Jiaming (author), Yao, L. (author), Dransfeld, C.A. (author), Alderliesten, R.C. (author), Zhao, Guoqun (author)The production of advanced composites from recycled carbon fibres (rCFs) is critical for the sustainable development of carbon fibre industry. Herein, non-woven mats consisting of commingled rCFs and Polyphenylene-sulfide (PPS) fibres were compression moulded to manufacture rCF/PPS composites, with the fibre/matrix adhesion being tailored by...journal article 2023
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Gülmez, D.E. (author), Maldonado, Jesus (author), Masania, K. (author), Sinke, J. (author), Dransfeld, C.A. (author)Chopped Tape Thermoplastic Composites (CTTCs) offer high formability and performance for complex-shaped components in the aerospace and automotive industries. However, the mesoscopic discontinuity leads to spatial variabilities and correspondingly high scatter in the elastic properties of CTTCs due to the random orientations of chopped tapes...journal article 2023
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- Binetruy, Christophe (author), Caglar, Baris (author), Daelemans, Lode (author), Dransfeld, C.A. (author), Michaud, Véronique (author) contribution to periodical 2023
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Werlen, Vincent (author), Rytka, Christian (author), Wegmann, Stephanie (author), Philipp, Halime (author), Khalaf, Yara (author), Michaud, Véronique (author), Brauner, Christian (author), Dransfeld, C.A. (author)Thermoplastic compression resin transfer moulding coupled with injection moulding is an appealing process for the production of thermoplastic composites. However, its implementation at an industrial scale remains challenging as variotherm injection moulding could prevent solid skin formation in the parting line, making cavity sealing...journal article 2022
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Quan, D. (author), Farooq, U. (author), Zhao, Guoqun (author), Dransfeld, C.A. (author), Alderliesten, R.C. (author)Exploring routes for the effective use of recycled carbon fibres (rCFs) is critical to close the loop in the life cycle of carbon fibres. This work demonstrated a potential of using rCFs for interlayer toughening of carbon fibre/epoxy composites. Nonwoven mats based on rCFs and commingled rCFs/Polyphenylene-sulfid (PPS) fibres were used to...journal article 2022
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Fazzi, L. (author), Struzziero, G. (author), Dransfeld, C.A. (author), Groves, R.M. (author)The unique sensing features of the tilted Fibre Bragg Grating (TFBG) as a single three-parameter optical sensor are demonstrated in this work, to monitor the manufacturing process of composite materials produced using Vacuum Assisted Resin Transfer Moulding (VARTM) process. Each TFBG sensor can measure simultaneously and separately strain,...journal article 2022
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Liu, S. (author), Sinke, J. (author), Dransfeld, C.A. (author)Hot-pressing can be an attractive fabrication method that enables the forming of hybrid materials like thermoset based fibre metal laminates. However, the process simulation on press forming requires accurate material characterization and boundary conditions to facilitate part design for a defect-free component. In order to improve the overall...conference paper 2022
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Ogugua, C.J. (author), Sinke, J. (author), Dransfeld, C.A. (author)This work quantifies and compares the environmental impact of a thermoset CFRP aircraft skin panel to that of a thermoplastic CFRP panel. This comparison is done using a cradle to gate life cycle assessment including impacts from raw material extraction, manufacturing and end of life. In addition, a hotspot analysis was performed to identify...conference paper 2022
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Werlen, Vincent (author), Vocke, Richard (author), Rytka, Christian (author), Schwanemann, Philip (author), Michaud, Véronique (author), Dransfeld, C.A. (author)Side-by-side hybrid textiles consist of layers of woven reinforcing fibres and thermoplastic fibres fabrics alternatively stacked on each other, as represented in Figure 1. Press moulding of side-by-side hybrid textiles is a manufacturing method where a near-net shape final part is produced in a single step, unlike pre-impregnated materials...conference paper 2022
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Gülmez, D.E. (author), Sinke, J. (author), Dransfeld, C.A. (author)Discontinuous tape composites have considerable attention due to their high formability and tailorable structures. Despite their advantages, this discontinuity leads to complex structures and makes it difficult to predict their mechanical properties. On the other hand, they have high orientational and dimensional sensitivity, which causes...conference paper 2022
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Katuin, N. (author), Peeters, D.M.J. (author), Dransfeld, C.A. (author)Carbon fibre-reinforced polymer composites (CFRPs) outperform most structural engineering materials in specific stiffness and/or specific strength, especially in their unidirectional configuration. Unidirectional composites can be found as individual structural elements in cables or pin-loaded straps; they are however most commonly found in the...conference paper 2022
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Gomarasca, S. (author), Peeters, D.M.J. (author), Atli-Veltin, B. (author), Dransfeld, C.A. (author), Luinge, Hans (author)Finding new ways to evaluate the variability of microstructures, and its effect on macroscopic properties such as permeability and mechanical performance [1,2] is of increasing interest in the composite field. The variability of microstructural features at a three-dimensional level is not fully understood and its effect on macroscale properties...conference paper 2022
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Farooq, U. (author), Teuwen, Julie J.E. (author), Dransfeld, C.A. (author)Epoxies with high cross-linking densities are brittle and hence have a low fracture toughness. However, different methods are known to increase fracture toughness. Numerous approaches are known to incorporate a second phase into the epoxy matrix, such as rubber, inorganic nanoparticles or thermoplastics, referred to as bulk resin modification....conference paper 2022
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Urselmann, H.H. (author), Gülmez, D.E. (author), Dransfeld, C.A. (author)Discontinuous fiber composites (DFC) have properties such as notch insensitivity, short processing times, and large shaping freedom [1-3]. However, the mechanical behavior of ROT composites is less predictable compared to continuous fiber composites due to the mesoscopic heterogeneity of the material [4]. Controlling the tape alignment is a...conference paper 2022
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Hosseini, S.M.A. (author), den Otter, Arjan (author), Zevenbergen, John (author), Atli-Veltin, B. (author), Dransfeld, C.A. (author)The main bottleneck of using composites for cryogenic storage of clean hydrogen fuel is the permeation of gas molecules. In this work, the permeation of hydrogen gas through thermally cycled thermoplastic composite laminates with two different stacking sequence is investigated. The experimental study is based on a methodology of cryogenically...conference paper 2022