FINITE-ELEMENT ANALYSIS OF THE PROBLEM OF STABILITY AND SUPERCRITICAL BEHAVIOR OF TANK-TRUCKS FOR TRANSPORTING LOOSE FREIGHTS

Abstract

A 3D problem of elastoplastic deformation, loss of stability and supercritical behavior of a thinwalled shell of revolution loaded in bending is considered. The shell is assumed to be filled with a loose medium. The geometrically and physically nonlinear problem is analyzed using the FEM and the cross-type explicit time-integration scheme. The critical loading value is estimated using the method of continuation along the parameter, the parameter being time. The stability and critical loading value are examined as a function of the internal pressure and length of the shell.

Keywords: cylindrical shell, loss of stability, bending, critical loading value, finite-element method.