Elastik Zemin Üzerine Oturan Tabakalı Kompozit Plaklarda Kenar Oranlarının ve Fiber Açılarının Değişiminin Serbest Titreşim Analizi Üzerine Etkisi

Yıl 2016, Cilt: 31 Sayı: 2, 217 - 226, 06.06.2016

Ali Doğan

https://doi.org/10.21605/cukurovaummfd.310280

Cited By: 1

Öz

Bu çalışmada, elastik zemin üzerine oturan basit mesnetli antisimetrik dizilimli tabakalı kompozit ince ve kalın plakların (LCP) plak kenar uzunluklarının oranının ve fiber yönelimlerinin, serbest titreşim analizi üzerine etkisi sunulmaktadır. Bu analizlerde, zemin Pasternak ve Winkler tipi iki zemin parametresi ile modellenmiştir. Hamilton prensipleri ile elastik zemin üzerindeki tabakalı kompozit dikdörtgen plakların hareket denklemleri elde edilmiştir. Navier tekniği kullanılarak kapalı form çözümleri elde edilmiş ve sonra özdeğer problemi çözülerek temel frekanslar bulunmuştur. Analizler ile elde edilen nümerik sonuçlar çalışmada sunulmuş ve literatürdeki çalışmalarla karşılaştırılmıştır.

Anahtar Kelimeler

Tabakalı kompozit, Serbest titreşim, Elastik zemin, Kayma deformasyon plak teorisi

The Effect of Edge Ratio and Fiber Orientation on Free Vibration Analysis of Laminated Composite Plates on Elastic Foundation

Öz

This study presents the effect of edge ratio and fiber orientation on free vibration analysis of simply supported antisymmetric thin and thick laminated composite plates (LCP) on elastic foundation. In the analysis, the foundation is modeled as two parameters Pasternak and Winkler type foundation. The equation of motion for laminated rectangular plates resting on elastic foundation is obtained through Hamilton’s principle. The closed form solutions are obtained by using Navier technique, and then fundamental frequencies are found by solving the results of eigenvalue problems. The numerical results obtained through the present analysis are presented, and compared with the previous studies in the literature.

Anahtar Kelimeler

Laminated composite, Free vibration, Elastic foundation, Shear deformation plate theory

Kaynakça

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