Failure analysis of tapered composite structures under tensile loading

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Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Fen Bilimleri Enstitüsü, Fen Bilimleri Enstitüsü, Türkiye

Tezin Onay Tarihi: 2016

Öğrenci: OZAN ÇELİK

Danışman: KEMAL LEVEND PARNAS

Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu

Özet:

A three dimensional finite element modeling approach is used to evaluate the effects of preliminary design variables on the performance of tapered composite laminates under tensile loading. Hashin failure criteria combined with a progressive failure algorithm is used for in-plane failure mechanisms and cohesive zone method is used for out-of-plane failures. The modeling approach is validated by a comparison with experimental results from literature. The validated model is used to examine various design variables in terms of their effect on the ultimate tensile strength of the tapered laminate. Finite element models are created for several preliminary design variables and their effects are discussed.