Publication: Fonksiyonel Kademelendirilmiş Al-SicKompozit Malzemelerin Termal Şok Etkisi Altında Mekanik Özelliklerinin İncelenmesi
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Teorik ve Uygulamalı Mekanik Türk Milli Komitesi
Theoretical and Applied Mechanical Turkish National Committee
Theoretical and Applied Mechanical Turkish National Committee
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Bu çalışmada balistik amaçlı geliştirilen fonksiyonel kademelendirilmiş malzemelerin (FGM) basma testi altındaki şekilsel ve mekanik davranışı inlenmiştir. Al-SiC karışımından oluşan bu malzemelerden n=0.1, n=1 ve n=10 değerlerine sahip olanlar deneysel çalışmalarda kullanılmıştır. Bu malzemelerden bir seri, direk olarak basma testine tabi tutulmuş ve bunların mekanik değerlerine ve hasar şekillerine bakılmıştır. Diğer bir seri ise 550 C’den 0 C’ye ani olarak soğutularak (termal şok), önce makro incelemeye tabi tutulmuş daha sonra yine bu numunelerede basma testi uygulanmıştır. Elde edilen sonuçlar FGM’lerin basma testi altında farklı n değerlerinde farklı yapıda şekil değiştirdiğini, termal şokların ise basma dayanımını artırıcı, şekil değiştirme kabiliyetini azaltıcı etki ortaya koyduğunu göstermektedir.
In this study, structural and mechanical behavior of the functional graded materials which developed for ballistic was examined under compression test. The materials which have Al-SiC mixing and value of n=0.1, n=1 and n=10, have been used in experimental studies. A series of these pruducts were subjected to compression test directly, and these mechanical values and damage forms was examined. And the other series of macro wiev was investigate and then was applied to compression test after thermal shocking from 550 C to 0 C. The obtained results show that the functional graded materials presents different mechanical behaviour under different n value. Thermal shocks introduced the increasing affect to compression strenght and decreasing affect to shape changing ability.
In this study, structural and mechanical behavior of the functional graded materials which developed for ballistic was examined under compression test. The materials which have Al-SiC mixing and value of n=0.1, n=1 and n=10, have been used in experimental studies. A series of these pruducts were subjected to compression test directly, and these mechanical values and damage forms was examined. And the other series of macro wiev was investigate and then was applied to compression test after thermal shocking from 550 C to 0 C. The obtained results show that the functional graded materials presents different mechanical behaviour under different n value. Thermal shocks introduced the increasing affect to compression strenght and decreasing affect to shape changing ability.
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19. Ulusal Mekanik Kongresi
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