SİMETRİK KATMANLI KOMPOZİT KİRİŞLERDE ELYAF YÖNLENME AÇILARININ ÇOK-AMAÇLI OPTİMİZASYONU

Year 2022, Volume: 23 Issue: 2, 85 - 96, 29.12.2022

Fatih Karaçam Taner Timarcı

Abstract

Bu çalışmada, farklı sınır koşulları altında simetrik katmanlı kompozit bir kirişte elyaf yönlenme açılarının çok-amaçlı optimizasyonu gerçekleştirilmiştir. Elyaf yönlenme açıları tasarım parametreleri olarak seçilmiş olup, optimizasyon yöntemi olarak genetik algoritma (GA) kullanılmıştır. Optimizasyon işlemi her nesilde elde edilen minimum çökme, normal ve kayma gerilmesi parametrelerine bağlı olarak önceden tanımlanan bir uygunluk fonksiyonunun maksimize edilmesiyle gerçekleştirilmiştir. Maksimum uygunluk fonksiyon değerlerini ve bu değerlere karşılık gelen çökme, normal ve kayma gerilmelerini veren elyaf sıralanışları tablolarda sunulmuş, farklı ağırlık katsayıları ve sınır koşulları için uygunluk fonksiyonlarının nesil sayısına bağlı olarak değişimleri grafiklerle gösterilmiştir.

Keywords

Katmanlı Kompozit Kirişler, Elyaf Sıralanışı, Genetik Algoritma, Çok-Amaçlı Optimizasyon

MULTI-OBJECTIVE OPTIMIZATION OF FIBER ORIENTATION ANGLES IN SYMMETRICALLY LAMINATED COMPOSITE BEAMS

Abstract

In this study, multi-objective optimization of fiber orientation angles in a symmetrically laminated composite beam is carried out under various boundary conditions. The fiber orientation angles are chosen as the design parameters and genetic algorithm (GA) is used as the optimization method. The optimization process is performed by maximizing a predefined fitness function depending on the minimum deflection, normal and shear stress parameters in each generation. The stacking sequences giving the maximum fitness function values and corresponding deflection, normal and shear stresses are presented in the tables, the variation of the fitness functions with respect to the number of generations are illustrated in graphics for different weight coefficients and boundary conditions.

Keywords

Laminated Composite Beams, Stacking Sequence, Genetic Algorithm, Multi-Objective Optimization

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