Impact of geometric parameters and physical-mechanical properties of the internal bearing layer on the dynamic transient processes of the three-layer hemispherical shell

Abstract

The effect of geometrical parameters and physical-mechanical properties of the internal bearing layer of a three-layer spherical structure on its dynamic behavior under internal impulse loading was investigated. A finite-element model of the structure was created and calculations of normal deflections and normal stresses of its bearing layers were performed using the Fimap with NX Nastran software and calculation complex. Options for reducing the negative impact of inefficient design solutions are considered.
 Geometric parameters and physical and mechanical properties of the internal bearing layer of the shell structure under internal impulse loading are significant.
 An effective factor of stability to dynamic influences of layered shell structures is the provision of optimal ratios of geometric parameters and physical and mechanical characteristics of the materials of their bearing layers and polymer aggregate.