Selected Tribological Properties and Vibrations in the Base Resonance Zone of the Polymer Composite Used in the Aviation Industry

Abstract

The revolution in the global market of composite materials is evidenced by their increasing use in such segments as the transport, aviation, and wind industries. The innovative aspect of this research is the methodology approach, based on the simultaneous analysis of mechanical and tribological loads of composite materials, which are intended for practical use in the construction of aviation parts. Simultaneously, the methodology allows the composition of the composites used in aviation to be optimized. Therefore, the presented tests show the undefined properties of the new material, which are necessary for verification at the application stage. They are also a starting point for further research planned by the authors related to the improvement of the tribological properties of this material. In this article, the selected mechanical and tribological properties of an aviation polymer composite are investigated with the matrix of L285-cured hardener H286 and six reinforcement layers of carbon fabric GG 280P/T. The structure of a polymer composite has a significant influence on its mechanical properties; thus, a tribological analysis in the context of abrasive wear in reciprocating the movement for the specified polymer composite was performed. Moreover, the research was expanded to dynamic analysis for the discussed composite. This is crucial knowledge of material dynamics in the context of aviation design for the conditions of resonance vibrations. For this reason, experimental dynamical investigations were performed to determine the basic resonance of the material and its dynamics behavior response. The research confirmed the assumed hypotheses related to the abrasive wear process for the newly developed material, as well as reporting an empirical evaluation of the dependencies of the resonance zone from the fabric orientation sets.

The Impact of Selected Atmospheric Conditions on the Process of Abrasive Wear of CFRP

“…The other half underwent abrading in the presence of water. Water was introduced into the research due to its ability to significantly accelerate the process of tribological damage to composites, which results from the conducted preliminary testing and from the literature analysis (e.g., [ 3 , 45 , 46 , 47 ]). The tribometer, used during the tests described in this article, allowed for a sound simulation of the impact of different types of an abradant on the material surface.…”

Low Velocity Impact Response and Tensile Strength of Epoxy Composites with Different Reinforcing Materials

“…Multilayered composites are popular because of their low weight, high strength and high stiffness [ 1 ]. Their low weight is important in many applications; for example, an aircraft with a lower weight would be more fuel efficient [ 2 ]. The use of composite materials in the aviation industry has significantly increased in recent years and composites now constitute more than 25% of the Airbus A380 and 50% of the Boeing 787 aircraft [ 3 ].…”

Research into the Effect of Grain and the Content of Alundum on Tribological Properties and Selected Mechanical Properties of Polymer Composites

“…Composite materials have long been used due to [ 13 , 14 ]: good constructional properties, small specific gravity, easy moulding of products (also those of large dimensions), diversity of processing techniques, possibility of differentiating the properties by modifying the use of intermediate inputs and processing techniques. …”