Jacek Janiszewski

Unmanned aerial vehicles are widely used in various fields of application. Due to their low weight requirements and favorable strength properties, UAVs are primarily manufactured from CFRP (carbon fiber reinforced polymer), however, 3D printing technology also appears to be a promising technique...

At every stage of the development of modern aerospace structures, engineers are keen to obtain the lightest possible product while maintaining high strength. In order to meet such requirements, composite materials are now widely used in the aerospace industry, with manufacturing methods...

Composite materials are increasingly used in the aerospace industry, among which laminates seem to be the most commonly used ones. They often replace conventional materials, such as metals due to their superior properties and performance. Composite materials help reduce fuel consumption and...

In the modern aerospace industry, a steady increase in the share of composite materials is recorded every single year. Polymer layer composites seem to be the ones that are used most commonly in aviation. There are multiple methods of producing this type of materials, of which the most commonly...

The share of composites in today's aerospace industry is steadily increasing. Layered composites are the most popular in aviation. There are a number of methods of their manufacture, each with specific characteristics. One of the most popular simple methods are the technique using a hydraulic press to apply pressure, the vacuum bag method and the infusion method. They are all widely used and useful in individual and mass production, and allow the same types of composites to be made, but due to the differences, the resulting composites, despite having the same structure, may have different properties. In order to verify this observation, an experimental study of the same carbon fabric-reinforced polymer layered composites made by the methods mentioned above was carried out. The mechanical properties of the composites were studied, with a particular focus on their resistance to low-energy impact loading. The results of the study indicate that the composites produced by the infusion method have the best mechanical properties, and with the selected manufacturing technology parameters, the method using a hydraulic press produced the composite with the lowest surface mass.