Comparison of Mechanical Properties of Composites Reinforced with Technical Embroidery, UD and Woven Fabric Made of Flax Fibers

Abstract

The main purpose of the article is to present the possibilities of producing composite reinforcement with the use of a computer embroidery machine. The study below presents the results of strength tests of composites containing technical embroidery, woven fabric, and UD fabric as the reinforcement. Each of the samples was made of the same material—flax roving. The samples differed from each other in the arrangement of layers in the reinforcement. The composites were made using the infusion method with epoxy resin. The embroidery was made on a ZSK embroidery machine, type JCZA 0109-550. A total of 12 types of composites were produced and tested. The test material was subjected to strength tests—tensile strength, tensile elongation, and shear strength, on the INSTRON machine. As the research showed, the use of technical embroidery as a composite reinforcement increases its tensile strength. Furthermore, the use of embroidery is a vertical reinforcement of the composite and prevents the formation of interlayer cracks. The technology of technical embroidery allows for optimizing the mechanical values of the composite reinforcement.

Experimental Global Warming Potential-Weighted Specific Stiffness Comparison among Different Natural and Synthetic Fibers in a Composite Component Manufactured by Tailored Fiber Placement

“…Again, similarly to the dry fibers, the carbon-BB stiffness is around three times larger than the glassor basalt-BB. As observed by other studies [7,24], the behavior of the flax fibers, in terms of stiffness, is close to both basalt and glass fibers. It is important to mention, that the average f vc obtained in the specimens is below the intended one.…”

“…Almeida Jr. et al [ 23 ] have improved an already optimized component and results have shown that outstanding mechanical behavior can be obtained by TFP-made components even when compared with other high-performance composites. Poniecka et al [ 24 ] have used the process to evaluate the mechanical properties of different configurations of flax fibers—from UD to woven fabric—considering different TFP parameters. Their results have shown that strength values were higher in UD TFP samples when compared to conventional UD-reinforced composites.…”

New Solutions in the Production of Composites - Mechanical Properties of Composites Reinforced With Technical Embroidery and Woven Fabric Made of Flax Fibers

“…As proven in previous studies, the use of technical embroidery for the production of composite reinforcements improves strength of composites, compared to ones containing woven fabric as reinforcement. [19][20].…”

Preparation and characterization of Y-shaped fractal frequency selective fabric

“…It has also been successfully used in the fields of manufacturing antennas, coils of unilateral nuclear magnetic resonance systems, etc. [22][23][24][25] Computer embroidery technology can stack the conductive sewing thread into FSS patterns, and can also form corresponding patterns according to the designed shape and size to produce electromagnetic wave frequency selective transparent textiles. Therefore, FSFs can be prepared by increasing the conductivity of the embroidery yarn and using periodic embroidery patterns.…”