Srength Characteristics of Liquid Storage Tanks with Nanocomposites as Reservoir Materials

Abstract

The objective of this research is developing effective methods to estimate static and dynamic strength characteristic of liquid storage tanks. Fluid-filled reservoirs made of different nanocomposite materials are considered using concept of representative volume element. Static and dynamic analyses are accomplished. Free and forced vibrations of the elastic shells of revolution, partially filled with an ideal incompressible fluid are analysed. Finite and boundary element methods are used for numerical implementation. It has been demonstrated that the lowest own frequencies of elastic reservoirs are corresponded to sloshing. To reduce the sloshing amplitude, it is proposed to use a floating cover in the form of an elastic membrane. The results of the calculations have been shown that the use of composite materials with nanoinclusions in the form of steel spheres is the best option for environmentally friendly operation of tanks under intensive loads.