Optimal design of plates with cell type hollow core

3rd International Conference on Innovative Materials, Structures and Technologies

Frolovs, G.^1 ; Rocens, K.^1 ; Sliseris, J.^1

Riga Technical University, Institute of Structural Engineering and Reconstruction, Kipsalas 6A, Riga, Latvia^1

关键词: Composite sandwiches;    Hollow cores;    Load transferring;    Load-bearing capacity;    Manufacturing process;    Optimal design;    Specific stiffness;    Straight ribs;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/251/1/012075/pdf
DOI  :  10.1088/1757-899X/251/1/012075

来源: IOP

【 摘 要 】

This research relates to the composite sandwich plywood plates with skin layers of birch plywood and a core of straight and waved plywood cell-Type ribs. This specific form of ribs allows to simplify manufacturing processes, to increase the glued area and the ways of load transferring paths and to tailor the stiffness in both (longitudinal and transversal) directions providing increased specific stiffness, strength or load bearing capacity (stiffness, strength or load bearing capacity to mass ratio). The various results depending on chosen variables (according to strength-stiffness criteria) were obtained for one span plate in bending. A various thicknesses of plywood sheets are taken for skins and straight rib parts while for waved part of ribs the 3 layer plywood was taken.