Optimal design of composite plates with discrete variable stiffness

Autor:	Karlis Rocens, Janis Sliseris
Rok vydání:	2013
Předmět:	Optimal design Engineering Shear stiffness Artificial neural network business.industry Composite number Stiffness Structural engineering Stress field Deflection (engineering) Ceramics and Composites medicine Discrete variable medicine.symptom business Civil and Structural Engineering
Zdroj:	Composite Structures. 98:15-23
ISSN:	0263-8223
DOI:	10.1016/j.compstruct.2012.11.015
Popis:	A new optimization technique of composite plates with discrete varying stiffness is proposed. It consists of three main steps. Analysis of optimal continuous varying bending and shear stiffness of plate is done in the first step by minimizing structural compliance and stress field differences. Size optimization of discrete domains is done in the second step by solving minimization problem with a Genetic Algorithm. Dimension optimization of plates internal structure is done by previously trained feed-forward artificial neural network in the third step. A simply supported rectangular plate with uniformly distributed load and multispan plate with concentrated loads are optimized by the using of proposed method. The deflection of optimized plate could be reduced up to 50%, and average increase of strength to mass ratio is about 20%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f3dfd6f1098bd52f97238eebd8a9dfbf https://doi.org/10.1016/j.compstruct.2012.11.015 Zobrazit plný text záznamu Full Text from ScienceDirect