MTA-BME Research Group

Development of ductile polimer composites with designable interfacial adhesion

Project ID:
Supported by:
Nemzeti Kutatási, Fejlesztési és Innovációs Hivatal (NKFIH)
1 December 2017 - 30 November 2021
Supervisor (BME):
Dr. Gábor Szebényi
Participant researchers (BME):
Prof. Dr. h.c. mult. Karger-Kocsis József
Dr. Tamás-Bényei Péter
Magyar Balázs
Hliva Viktor

Project summary

The main research hypothesis is if the modification of the interlaminar adhesion in long fiber reinforced thermoset matrix composites can improve their ductility. Through the research process, many important questions about the role of adhesion in multiphase systems will be addressed and answered: What is the optimal level of adhesion providing ductile behavior through the relative slippage of the constituents without compromising the strength provided by good load transfer? How do interlaminar patterns effect the global and local deformation of a composite structure? Is there a difference in the behavior in composites with regular and random interlaminar patterns? How does pattern geometry (spacing, fiber diameter, periodicity, orientation) effect the global and local mechanical characteristics? Can a thermoplastic interphase material act as a healing agent in a composite system?

Project results

Section 1
1 December 2017 - 30 November 2018
We have prepared a literature survey on the damage and failure mechanisms, non-destructive test methods, ductility, ductility improvement of endless fiber reinforced composites and applicable methods for ductility improvement. We have created concepts for interlaminar patterns and produced interfacially engineered composites from epoxy matrix, carbon fibers and PCL and PESU interlaminar patterns. Our first static (tensile and 3 point flexural) and dynamic (Charpy impact) tests approved the pseudo ductile behavior.
Printing of interfacial pattern

Section 2
1 December 2018 - 30 November 2019
The main research topics of the second year of the project were the following: - Creation of novel interlaminar patterns based on the results of the preliminary tests. - Investigation of the surface filling ratio on the ductility of the composites, definition of optimal filling in case of the best interlaminar patterns. - Investigation of the effect of interlaminar patterns and created delaminated zones on the full-field deformation of composites by digital image correlation (DIC) during non-destructive low load testing. - Starting of finite element modeling of the interlaminar patterned/delaminated structures. - Starting of the development of alternative patterning technology based on LASER degradation of the sizing of the reinforcement fibers.
Strain map of composites with different interlaminar patterns

Section 3
1 December 2019 - 30 November 2020
The main research topics of the third year of the project were the following: - Exhaustive tests on the prepared interfacially engineered composites. - Static and dynamic testing, investigation of the effect of the interlaminar patterns. - Tests with full-field strain measurements to define affected zones, strain distributions. - Morphological investigations.
Fracture mechanism of composites without (1) and with (2) interfacial patterns

Section 4
1 December 2020 - 30 November 2021

Project-related publications

  1. Karadi D. T., Sipos A. A., Halász M., Hliva V., Hegyi D.: An elastic phenomenological material law of technical textile with a nonlinear shear behaviour. Journal of Reinforced Plastics and Composites, 40, 759-769 (2021) 10.1177/07316844211005842 IF=3.71 Q2
  2. Magyar B., Czigány T., Szebényi G.: Metal-alike polymer composites: The effect of inter-layer content on the pseudo-ductile behaviour of carbon fibre/epoxy resin materials. Composites Science and Technology, 215, 109002/1-109002/8 (2021) 10.1016/j.compscitech.2021.109002 IF=8.528 D1
  3. Szebényi G., Magyar B., Czigány T.: Achieving Pseudo-Ductile Behavior of Carbon Fiber Reinforced Polymer Composites via Interfacial Engineering. Advanced Engineering Materials, 23, 2000822/1-2000822/7 (2021) 10.1002/adem.202000822 IF=3.862 Q2
  4. Szebényi G., Blößl Y., Hegedűs G., Tábi T., Czigány T., Schledjewski R.: Fatigue monitoring of flax fibre reinforced epoxy composites using integrated fibre-optical FBG sensors. Composites Science and Technology, 199, 108317/1-108317/8 (2020) 10.1016/j.compscitech.2020.108317 IF=8.528 D1
  5. Tamás-Bényei P., Bitay E., Kishi H., Matsuda S., Czigány T.: Toughening of Epoxy Resin: The Effect of Water Jet Milling on Worn Tire Rubber Particles. Polymers, 11, 529/1-529/11 (2019) 10.3390/polym11030529 IF=3.426 Q1
  6. Hliva V., Szebényi G.: Mesterséges rétegelválás modellezése polimer kompozitokban. in 'XXVII. Nemzetközi Gépészeti Konferencia (OGÉT2019) Nagyvárad, Románia. 2019.04.25-2019.04.28.,197-200 (2019)
  7. Szebényi G., Hliva V.: Detection of Delamination in Polymer Composites by Digital Image Correlation—Experimental Test. Polymers, 11, 523/1-523/11 (2019) IF=3.426 Q1
  8. Szebényi G., Hliva V., Tamás-Bényei P.: Investigation of delaminated composites by DIC and AE methods. in 'International Conference on Composite Materials (ICCM22) Melbourne, Australia. 2019.08.11-2019.08.16,7 (2019)
  9. Magyar B., Szebényi G., Czigány T.: Comparison of different interfacial engineering methods to achieve pseudo-ductile behaviour of carbon fibre reinforced polymer composites. in 'International Conference on Composite Materials (ICCM22) Melbourne, Australia. 2019.08.11-2019.08.16,9 (2019)
  10. Szebényi G., Magyar B.: Effect of fibre sizing on the interlaminar properties of polyamide matrix composites. IOP Conference Series: Materials Science and Engineering, 426, 012044/1-012044/7 (2018) 10.1088/1757-899X/426/1/012044

© 2014 BME Department of Polymer Engineering - Created by: Dr. Romhány Gábor