Bending of Five-layer Beams with Lengthwise Corrugated Main Core

摘要

The paper is devoted to one orthotropic thin-walled sandwich beam with trapezoidal core and two-layer facings. The inner layers of the facings are also corrugated. The orientation of the corrugations of the inner layers of the facings is perpendicular to trapezoidal corrugation of the beam core. The mathematical and physical model of this beam is formulated, and also the field of displacements. Basing on the principle of the total potential energy the system of equilibrium equations is derived. The analytical solutions will be verified numerically with the use of the finite element method (MES).