STUDY OF THE SEISMIC LOADS INFLUENCE ON LIQUID HYDROCARBON STORAGE TANKS MADE OF NANOCOMPOSITE MATERIALS

Abstract

Earthquake damage to reservoirs in earthquake-prone and especially non-seismic regions could lead to serious social, economic and environmental problems, as they are used to store important liquids such as drinking and fire-fighting water, petroleum products and fertilizers. Liquid hydrocarbon storage tanks are of particular interest to the scientific community and the public. Liquid hydrocarbons are mostly flammable and explosive, poisonous and harmful, and due to leakage, they easily cause catastrophic accidents such as fire, explosion, serious threat to human life and property safety. It is relevant to study the properties of materials that allow for stable tank operation for the liquid hydrocarbons storage under natural and technogenic seismic influences conditions. The purpose of the work is to study the seismic loads impact on liquid hydrocarbon storage tanks made of nanocomposite materials to improve the environmental safety of the surrounding areas. The use of composite materials with nanoinclusions in tanks for storing environmentally hazardous liquids allows to increase the reliability of tanks under seismic loads and to extend their service life under the action of natural and technogenic influences of various origin. The results of the calculations have been shown that the use of composite materials with nanoinclusions in the steel spheres form is the best option for environmentally safe operation of tanks under seismic loads. The performed calculations allow to build the necessary systems of basic functions for the forced oscillations study, as well as the influence of surface tension and nonlinear effects on the oscillations of shells with liquid.