Çift eksenli basınç yükleri altında auxetic çekirdek katmanlı akıllı sandviç plakanın mekanik özelliklerinin incelenmesi

Yıl 2025, Cilt: 6 Sayı: 1, 103 - 120, 19.06.2025

Mustafa Buğday

https://doi.org/10.55546/jmm.1591526

Öz

Bu çalışma, auxetic çekirdek katmanlı akıllı sandviç plakaları modellemek için yüksek dereceli paylaşım deformasyon teorisini kullanır ve mekanik özelliklerini inceler. Akıllı plakanın dış katmanları elektro-elastik BaTiO3 (Baryum Titanat) ve manyetostriktif CoFe2O4 (Kobalt Ferrit) malzemelerinden oluşur. auxetic çekirdek katmanı, değişken auxetic hücre parametrelerine sahip metalik bir malzemeden (Nikel) oluşur. auxetic çekirdek hücresinin üç temel parametrik karakteristiği modellenmiştir: duvar kalınlığı parametresi, uzunluk parametresi ve eğim açısı. Hareket denklemleri Hamilton ilkesinden türetilmiş ve Navier yöntemi kullanılarak çözülmüştür. Bu çalışmanın bulguları, yüksek sıcaklık ortamlarında çalışması amaçlanan akıllı elektromekanik sistemlerin optimum tasarımını kolaylaştıracaktır.

Anahtar Kelimeler

Auxetic Yapı , Akıllı Sandviç Plaka , Manyeto Sıkıştırıcı Malzeme , Elektro Elastik Malzeme.

Investigation of mechanical properties of auxetic core layered smart sandwich plate under biaxial compression loads

Öz

This study uses high-order sharing deformation theory to model auxetic core layer smart sandwich plates and examines their mechanical properties. The outer layers of the smart plate consist of electro-elastic BaTiO3 (Barium Titanate) and magnetostrictive CoFe2O4 (Cobalt Ferrite) materials. The auxetic core layer consists of a metallic material (Nickel) with varying auxetic cell parameters. Three fundamental parametric characteristics of the auxetic core cell are modeled: wall thickness parameter, length parameter, and inclination angle. The equations of motion are derived from Hamilton's principle and resolved using the Navier method. The findings of this study will facilitate the optimal design of smart electromechanical systems intended for operation in high-temperature environments.

Anahtar Kelimeler

Auxetic Structure , Smart Sandwich Plate , Magneto Strictive Material , Electro Elastic Material.

Teşekkür

I am truly grateful to Prof. Dr. İsmail ESEN for his generous support, thoughtful guidance, and meaningful contributions throughout this study. His encouragement and insightful feedback made a real difference and helped shape this work into its final form.

Kaynakça

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