No abstract

No abstract

No abstract

The damping characteristics of hybrid layered materials of the class «aluminum–organoplastics» and «titanium–organoplastics» based on metal sheets and layers of aramid organoplastics are studied. It is shown that the level of damping properties of hybrid layered materials is higher than that of the initial alloys and depends on the volume content of organoplastics, the location of organoplastics layers relative to metal layers, as well as on the reinforcement scheme. Hybrid layered materials are promising materials for the manufacture of high-speed aircraft structures operating under high vibroacoustic loads.

Ballistic-resistant organoplastics made from layers of aramid fabric, adhesively bonded by a binder film, exhibit an increased tendency to absorb moisture, water and technical fluids in comparison with organoplastics monolithic structures. The absorption of liquids is anisotropic and manifests itself most intensively through the butt ends of the samples. The use of protective paintwork ensures stability of the characteristics of ballistic-resistant materials when exposed to environmental factors (environment, water, fuel, oil, natural climatic conditions).