Multiobjective optimization of laminated composite plates using metaheuristic algorithms

• Published in: Mechanics based design of structures and machines Vol. 53; no. 5; pp. 3416 - 3433
• Main Authors: Sager, Guilherme, Hofstadler, Franz, Grotti, Ewerton, Bührer Santana, Pedro, Paucar Casas, Walter Jesus, Gomes, Herbert Martins
• Format: Journal Article
• Language: English
• Published: Taylor & Francis 04.05.2025
• Subjects: differential evolution optimization; frequency and buckling constraints; Laminated composites; multiobjective optimization; stacking sequence optimization
• ISSN: 1539-7734; 1539-7742
• DOI: 10.1080/15397734.2024.2428748

This study introduces a multiobjective optimization algorithm for composite laminates, targeting natural frequencies, internal stresses, and buckling resistance with ply orientation as a primary design variable. Validated against experimental data, the algorithm allows for tailored designs focused on dynamic performance, strength, or buckling needs. Four cases are analyzed, including a graphite-epoxy composite optimized for multiple objectives, showing the significant impact of fiber orientation on achieving specific structural requirements. By generating effective Pareto fronts across varying design constraints, the method provides a scalable approach for complex laminate optimization. This research fills a literature gap, balancing computational efficiency with accuracy compared to benchmark problems.