FONKSİYONEL DERECELENDİRİLMİŞ GÖZENEKLİ KİRİŞLERİN SERBEST TİTREŞİM ANALİZİ

Yıl 2020, Cilt: 8 Sayı: 1, 49 - 60, 28.02.2020

Vedat Taşkın , Pınar Aydan Demirhan

https://doi.org/10.20290/estubtdb.538586

Cited By: 2

Öz

Malzeme
özelliklerinde kesit boyunca sürekliliği sağlayan fonksiyonel derecelendirilmiş
malzemeler tabakalı kompozitlerin yerini almaya başlamıştır. Fonksiyonel
derecelendirilmiş malzemelerin üretimi esnasında malzeme içinde bir miktar
gözeneğin hapsolduğu görülmektedir. Bu çalışmada gözenekli fonksiyonel
derecelendirilmiş kirişlerin serbest titreşim analizi gerçekleştirilmiştir.
Malzeme özelliklerinin kesit boyunca değişimi karışımlar kuralı yoluyla tanımlanırken,
gözeneklilik oranı bir katsayı ile ilave edilmiştir. Gözenekli fonksiyonel
derecelendirilmiş kiriş denklemi Hamilton prensibi ile elde edilmiş, basit
destekli kiriş için Navier yaklaşımı kullanılarak çözüm elde edilmiştir. Doğal
frekans değerlerinin kiriş kalınlığı, hacimsel değişim üsteli, gözeneklilik
dağılımı ve oranı ile değişimi incelenmiştir. Elde edilen değerlerin
literatürle uyumlu olduğu görülmüştür. 

Anahtar Kelimeler

fonksiyonel derecelendirilmiş malzemeler, gözenekli yapılar, kiriş, serbest titreşim, doğal frekans

FREE VIBRATION ANALYSIS OF FUNCTIONALLY GRADED POROUS BEAM

Öz

Kaynakça

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