ANALYTICAL AND NUMERICAL STUDY OF STRENGTH PROPERTIES OF THREE-LAYER PANEL WITH LIGHTWEIGHT CORE
The analytical solution is given for the task of lateral bending of a three-layer composite panel with a light-weight core, whose thickness is more than skin thickness, provided the two opposite edges of the extended panel have hinge support. A good consistency of results is obtained between the analytical solution and the data of finite-element calculation for 2D and 3D models. The specified methods will be used as an efficient basis for studying strength of acoustic panels.