Open AccessOPTIMIZATION OF MULTISPAN RIBBED PLYWOOD PLATE MACROSTRUCTURE FOR MULTIPLE LOAD CASES
Author(s) -
Jānis Šliseris,
Kārlis Rocēns
Publication year - 2013
Publication title -
journal of civil engineering and management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.529
H-Index - 47
eISSN - 1822-3605
pISSN - 1392-3730
DOI - 10.3846/13923730.2013.799091
Subject(s) - structural engineering , composite number , stiffness , finite element method , core (optical fiber) , deformation (meteorology) , genetic algorithm , materials science , composite material , engineering , mathematics , mathematical optimization
This paper discusses an optimized structural plate of plywood composite that consists of top and bottom plywood flanges and a core of plywood ribs. The objective function is structure's weight. Typical constrains – maximal stress criteria and maximal deformation criteria – are used. The optimization is done by Genetic Algorithm (GA), and optimization results are used to train Feed-Forward Artificial Neural Network. The numerical simulation of plywood structure is done by using classical linear Kirchoff–Love theory of multilayer plate and Finite Element Method. As a result, an effective optimization methodology for plywood composite material is proposed. The most rational (according to strength-stiffness criteria) plywood composite macrostructure is obtained for some typical cases.