Damping Properties of Hybrid Layered Metal-Polymer Materials Based on Aluminum, Titanium Alloys and Organoplastics Layers

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.

Adhesive and impact strength of hybrid layered metal-polymer composites reinforced by basalt fiber

“…Application of thermoplastic polymers with the possibility for multiple recycling and consequent reduction of consumption of thermosetting polymers of one production cycle is important from the point of view of ecology and nature preservation [6]. The All-Russian Scientific Research Institute of Aviation Materials has developed layered metal-polymer composites based on aluminum alloy with interlayers of filled polymeric materials, successfully implemented in the structural elements of the AN-124-100 cargo aircraft [7]. The application of these composites allowed to decrease significantly the growth of fatigue cracks due to the features of the material structure and 5 -20 times increase of the operational reliability of the aircraft aggregates reducing the weight of the aggregates by 12 %.…”