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Mechanical Properties of Textile-Reinforced Composites with a 3D Printed Core

Szary Jakub, Barburski Marcin, Świniarski Jacek

Fibres & Textiles in Eastern Europe

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2023

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Vol. 31, no. 4

38--45

EN

The article discusses the mechanical properties of glass fiber epoxy composites with three types of textile structures. Braided, knitted and woven sleeves were placed on a 3D printed flat core and impregnated with resin using the vacuum bag method. The 3-point flexural and tensile tests were performed. The results were compared with those of 3D-printed flat bars and proved that woven textile structures increase the strength and modulus of elasticity, whereas braided and knitted structures only increase the moduli. The advantages, drawbacks and failure modes of each reinforcement structure are also discussed including the drapeability on the spatial core.

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Mechanical Properties of Composites Reinforced with Technical Embroidery Made of Flax Fibers

Poniecka Agata, Barburski Marcin, Urbaniak Mariusz

Autex Research Journal

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2022

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Vol. 22, no. 4

438--445

EN

The main purpose of the article is to present the new possibilities of producing composite reinforcement with the use of a computer embroidery machine. This kind of production is in line with the principles of sustainable development. The study below presents the results of strength tests of composites containing sevenfold embroidery systems. Each variant included different directions of arrangement of individual layers as a reinforcement. Flax roving was used to strengthen the composite. Flax fibers are characterized by the highest strength among all-natural fibers, at the level of 50–80 cN/tex. The composite was made using the vacuum bag method, using epoxy resin. The embroidery was made on a ZSK embroidery machine, type JCZA 0109-550. The test material was subjected to strength tests-tensile strength, tensile elongation, and bending strength, on the INSTRON machine. Based on the research, it can be concluded that the arrangement of the roving in the direction of the tensile force allowed to obtain the best mechanical properties.

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Designing a Three-Dimensional Woven Fabric Structure as an Element of a Baby Stroller

Bethalihem Samuel T., Barburski Marcin, Lemmi Tsegaye Sh.

Autex Research Journal

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2022

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Vol. 22, no. 2

148--154

EN

A baby stroller allows the transportation of a child over long or short distances. The materials used to produce the stroller make it heavy for users, which creates difficulties when lifting the stroller. The goal of this project was to design and fabricate a three-dimensional (3D) fabric structure that can be used as part of a stroller seat to improve its mechanical and physical properties. The idea of implementing a woven 3D system allows the development of an egg-shaped or shell-like structure as part of a stroller seat. The combination of double-woven material and honeycomb polypropylene (as the reinforcing material) was used to create a 3D composite structure. Single and double layers of polypropylene honeycomb sandwiched within layers of linen flax fabric were used to prepare the composite samples. Subsequently, tests on mechanical and physical properties, such as density, flexural strength, and tensile strength, were carried out. Analysis of the results showed that the composite with one layer of honeycomb has half the density of polyvinyl chloride.

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Analysis of Mechanical Properties of Unidirectional Flax Roving and Sateen Weave Woven Fabric-Reinforced Composites

Lemmi Tsegaye Sh., Barburski Marcin, Samuel Bethalihem

Autex Research Journal

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2021

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Vol. 21, no. 2

218--223

EN

Natural fiber-reinforced composites are getting more attention from researchers and manufacturing companies to replace metals and synthetic materials that have dominated the manufacturing industries. In this study, the mechanical properties of unidirectional (UD) flax roving-reinforced composites and woven fabric-reinforced composites were investigated. Three different composites were prepared from flax rovings, which have the same linear density and epoxy resin matrix, with different reinforcement and composite preparation methods. The samples were subjected to experimental tests of flexural rigidity and tensile strength in a parallel and perpendicular direction to fiber orientation. The test results showed that flexural rigidity and tensile strength of flax fiber-reinforced composites are highly dependent on the direction of fiber orientation. The results also reveal that in a parallel direction to fiber orientation, UD composites have higher flexural rigidity and tensile strength than woven fabric-reinforced composite.

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Analysis of the Impact Resistance Capacity of 3D Spacer Fabrics Based on Impact Tests

Zawadzka Kinga, Barburski Marcin, Rutkowski Jacek

Fibres & Textiles in Eastern Europe

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2020

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Vol. 28, no. 6 (144)

53--57

EN

The article presents the structure influence of distance spacer fabric on the ability to protect against impact based on impact test results of selected packages made of spacer fabrics. The aim of testing these materials was to check their ability to suppress the impact force and absorb the energy in anti-impact vests. The purpose of using these textile materials in protective clothing would be to reduce the weight of the final product, and thus also to reduce heat stress during use. The article contains test results of the force received under an anvil and of the energy absorbed for each of the packages tested. The textile package developed, consisting of three layers, was classified as a protective material because it meets the requirements of EN 13158:2018 Protective clothing – Protective jackets, body and shoulder protectors for equestrian activities. The package provides protection at Level 1, the force received under an anvil during tests was 1.55 kN, and the package absorbed 24.96% of all impact energy. Additionally, the selected package was tested for air permeability.

PL

W artykule przedstawiony został eksperyment doboru optymalnego tekstylnego pakietu antyuderzeniowego, w celu wykorzystania go w odzieży ochronnej. Zastosowanie tekstylnych materiałów ma na celu obniżenie wagi wyrobu końcowego, aby zminimalizować stres cieplny występujący podczas użytkowania. Artykuł zawiera testy udarowe, które zostały podzielone na trzy etapy, każdy zawiera cel, wyniki oraz podsumowanie etapu. Opracowany pakiet tekstylny z dzianin dystansowych pochłania energię uderzenia i redukuje odebraną siłę uderzenia. Odzież (kamizelka), która mogłaby zawierać ten pakiet będzie o około 1,5 kg lżejsza od typowych obecnie dostępnych na rynku kamizelek. Wybrany pakiet spełnia wymogi normy PN-EN 13158:2010 na poziomie 1.

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Comparison of Mechanical Properties of Biaxial and Triaxial Fabric and Composites Reinforced by Them

Barburski Marcin, Urbaniak Mariusz, Samal Sanjeeb Kumar

Fibres & Textiles in Eastern Europe

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2019

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Vol. 27, no. 1 (133)

37--44

EN

In this article, the mechanical properties of biaxial and triaxial woven aramid fabric and respective reinforced composites were investigated. Both fabrics had the same mass/m2. The first part of the experimental investigation was focused on the mechanical properties of different non-laminated aramid fabrics (biaxial and triaxial). The second part was concerned with the mechanical properties of composites made of a different combination of layers of fabric reinforced with an epoxy resin matrix in the order of biaxial+biaxial, trixial+triaxial and biaxial+triaxial. The composites were tested for tensile strength, flexural strength, strain and Young’s and flexural modulus. It can be seen from the results that the density and direction of the yarns are the most important parameters for determination of the strength of the fabric reinforced composite. The biaxial composite clearly showed better tensile strength, while the bi-tri axial order showed good flexural strength compared to the other composite combinations. These fabric reinforced composites have suitable applications in the areas of medical, protection and in the automotive industries.

PL

W artykule przedstawiono wyniki badań właściwości mechanicznych tkaniny aramidowej dwuosiowej i trójosiowej oraz kompozytów duroplastycznych wzmocnionych tymi tkaninami. Obie tkaniny posiadały tę samą masę powierzchniową. Pierwsza część badań eksperymentalnych skupiona była na analizie właściwości mechanicznych obu tkanin aramidowych. Druga część dotyczyła analizy właściwości mechanicznych kompozytów wzmocnionych tkaninami w różnej konfiguracji: dwuosiowa + dwuosiowa, trójosiowa + trójosiowa,dwuosiowa + trójosiowa. Zbadano wytrzymałości na rozciąganie oraz zginanie, odkształcenie i moduł Younga trzech kompozytów w kierunku wzdłużnym, poprzecznym oraz pod kątem 45°. Na podstawie wyników stwierdzono, że liczność oraz kierunek przędzy są najważniejszymi parametrami określającymi wytrzymałość kompozytu wzmocnionego tkaniną. Kompozyt wzmocniony dwiema warstwami tkaniny dwuosiowej wykazywał wyraźnie lepszą wytrzymałość na rozciąganie. Kompozyt wzmocniony tkaniną trójosiową i dwuosiową wykazał się największą sztywnością zginania. Tego typu wyroby kompozytowe mogą mieć szerokie zastosowanie w obszarach przemysłu medycznego, ochronnego i motoryzacyjnego.