Eventos Anais de eventos
MECSOL 2022
8th International Symposium on Solid Mechanics
Influence of Reinforcement Initial Positions in Optimization on CRFP Plates
Submission Author:
Eduardo da Rosa Vieira , RS
Co-Authors:
Eduardo da Rosa Vieira , Rogério Marczak, Daniel Milbrath De Leon
Presenter: Eduardo da Rosa Vieira
doi://10.26678/ABCM.MECSOL2022.MSL22-0174
Abstract
Carbon Fiber Reinforced-Placement (CRFP) has great prominence in high-tech projects. The progress of manufacturing processes made it possible to manufacture composites with curvilinear fibers that are independent of each other, so Variable Stiffness Composites (VSC) were developed. The Variable Angle Tow (VAT) is a class of reinforcement deposition techniques, mainly used in plates, which have a non-linear orientation and that can be different in each ply. The orientation of the reinforcements is one of the main variables for changing the mechanical properties, so the implementation of optimization in the fiber paths becomes a powerful tool in the development of better components. In this work, Linear Programming method is successfully applied to obtain optimal fiber orientation in such cases. Plates were optimized using Sequential Linear Programming. Altogether, four case studies were carried out, containing one boundary conditions and four different initial positioning of the reinforcements were evaluated. It is important to highlight that in all cases the objective function was to minimize compliance and the number of reinforcements was three. Thus, it was possible to observe that there is considerable variation in final compliance. This could be proven by the case studies, after optimization the orientations with the best and worst performance showed a difference in strain energy of 280%.
Keywords
structural optimization, linear programming, CRFP, VSC
