ANALYSIS OF BEHAVIOR OF BASALT/Ni, W/Ni AND B/Ni FUNCTIONALLY GRADED COMPOSITE PLATES UNDER DYNAMIC PRESSURE LOADING

Year 2019, Volume: 8 Issue: 1, 464 - 478, 28.01.2019

Süleyman Baştürk

https://doi.org/10.28948/ngumuh.517162

Abstract

   Functionally Graded Materials (FDM) have an important place among other
advanced composite materials today. In this study, nonlinear dynamic behaviors
under the blast pressure loads of functionally graded plates formed by using different
materials such as basalt, tungsten (W), boron (B) and Nickel (Ni), used in high
temperature and pressure applications, are modeled and analyzed in detail.
Homogeneous Layered Model and Continuous Model approaches are used for modeling
functionally graded materials. The Exponential Pressure Loading Model is applied
as the blast pressure load. Detailed analysis showed that W/Ni composite plates
exhibited lower amplitude and vibration frequency behaviors as well as
different modeling methods and different values of n parameter have an effect on
the dynamic behavior of functionally graded composite plates.

Keywords

functionally graded materials, basalt/Ni, W/Ni, B/Ni, dynamic pressure load

BAZALT/Ni, W/Ni, VE B/Ni FONKSİYONEL DERECELENDİRİLMİŞ KOMPOZİT PLÂKALARIN DİNAMİK BASINÇ YÜKÜ ALTINDAKİ DAVRANIŞLARININ ANALİZİ

Abstract

   Fonksiyonel Derecelendirilmiş Malzemeler (FDM) diğer ileri kompozit
malzemelere göre günümüzde daha önemli bir yer tutmaktadır. Bu çalışmada,
yüksek sıcaklık ve basınç uygulamalarında kullanılan bazalt, tungsten (W) ve bor
(B) malzemeleri ile nikel (Ni) kullanılarak oluşturulan fonksiyonel
derecelendirilmiş plâkaların ani basınç yükleri altındaki lineer olmayan
dinamik davranışları modellenmiş ve detaylı analizleri yapılmıştır. Fonksiyonel
derecelendirilmiş malzemelerin modellenmesi için Homojen Katmanlı Model (HKM)
ve Sürekli Model (SM) yaklaşımları kullanılmıştır. Ani basınç yükü olarak ise Üstel
Basınç Yükü Modeli uygulanmıştır. Yapılan detaylı analizler sonucunda W/Ni
kompozit plâkaların daha düşük değerde genlik ve titreşim frekansı davranışı
gösterdiği, bunun yanında farklı modelleme yöntemleri ve n parametresinin
farklı değerlerinin de fonksiyonel derecelendirilmiş kompozit plâkaların
dinamik davranışında etkili olduğu olduğu görülmüştür.

Keywords

fonksiyonel derecelendirilmiş malzemeler, bazalt/Ni, W/Ni, bor/Ni, dinamik basınç yükü

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