Düzlemsel Olmayan Çatlak İlerleme Problemlerinin Üç Boyutlu Analizi

Oğuzhan Demir; Ali Osman Ayhan

Düzlemsel Olmayan Çatlak İlerleme Problemlerinin Üç Boyutlu Analizi

Abstract

Enerji, Savunma, Havacılık ve Uzay teknolojileri, ülkeler için kritik öneme sahip olup, bilim ve teknoloji düzeyinin gelişmesinde öncü rol oynayan alanların başında gelmektedir. Ar-Ge ve
yatırım maliyetlerinin yüksek olduğu bu alanlarda, kullanılan ekipmanlar da hem mali açıdan hem de malzeme güvenilirliği açısından büyük önem kazanmaktadır. Malzemelerde oluşabilecek hasarları en aza indirebilmek ve çatlak içeren yapıların emniyetli çalışabilmesini sağlamak için son yıllarda kırılma mekaniği alanında yapılan çalışmalar ağırlık kazanmıştır. Tasarım aşamasından başlayarak hasar/çatlak toleransları ve ömürleri tahmin edilerek iyileştirme çalışmaları gerçekleştirilmektedir.
Bu çalışmada, çatlaklı yapıların mod-I kırılma tokluğunu (KIC) belirlemede kullanılan standart CT (compact tension) numunesine eğik çatlak yerleştirilerek mod-I dış yüklemesi altında çatlağın üç boyutlu modelleme ve çatlak ilerleme simülasyonları gerçekleştirilmiştir. Kırılma ve çatlak ilerleme analizleri FCPAS (Fracture and Crack Propagation Analysis System) programı ile gerçekleştirilmiştir. Bu çalışma, FCPAS ile üç boyutlu karışık modlu çatlak ilerleme olgusunun modellenmesinin ilk adımını oluşturmaktadır.

Keywords

Sonlu Elemanlar Yöntemi,Çatlak İlerleme Analizi,Karışık Mod-I/III,Düzlemsel Olmayan Çatlak İlerlemesi

Supporting Institution

Türkiye Bilimsel ve Teknolojik Araştırma Kurumu’na (TÜBİTAK)

Project Number

113M407

Thanks

Bu çalışmayı, 113M407 no.lu proje kapsamında finansal olarak destekleyen, Türkiye Bilimsel ve Teknolojik Araştırma Kurumu’na (TÜBİTAK) teşekkür ederiz.

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Details

Primary Language

Turkish

Subjects

Engineering

Journal Section

Research Article

Authors

Oğuzhan Demir

Ali Osman Ayhan ^*

Publication Date

June 25, 2017

Submission Date

June 22, 2016

Acceptance Date

February 22, 2017

Published in Issue

Year 2017 Volume: 5 Number: 2

IZ

https://izlik.org/JA98JC79GP

Cite

RIS / Bibtex

APA

Demir, O., & Ayhan, A. O. (2017). Düzlemsel Olmayan Çatlak İlerleme Problemlerinin Üç Boyutlu Analizi. Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji, 5(2), 159-175. https://izlik.org/JA98JC79GP

AMA

1.Demir O, Ayhan AO. Düzlemsel Olmayan Çatlak İlerleme Problemlerinin Üç Boyutlu Analizi. GUJS Part C. 2017;5(2):159-175. https://izlik.org/JA98JC79GP

Chicago

Demir, Oğuzhan, and Ali Osman Ayhan. 2017. “Düzlemsel Olmayan Çatlak İlerleme Problemlerinin Üç Boyutlu Analizi”. Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji 5 (2): 159-75. https://izlik.org/JA98JC79GP.

EndNote

Demir O, Ayhan AO (June 1, 2017) Düzlemsel Olmayan Çatlak İlerleme Problemlerinin Üç Boyutlu Analizi. Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji 5 2 159–175.

IEEE

[1]O. Demir and A. O. Ayhan, “Düzlemsel Olmayan Çatlak İlerleme Problemlerinin Üç Boyutlu Analizi”, GUJS Part C, vol. 5, no. 2, pp. 159–175, June 2017, [Online]. Available: https://izlik.org/JA98JC79GP

ISNAD

Demir, Oğuzhan - Ayhan, Ali Osman. “Düzlemsel Olmayan Çatlak İlerleme Problemlerinin Üç Boyutlu Analizi”. Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım ve Teknoloji 5/2 (June 1, 2017): 159-175. https://izlik.org/JA98JC79GP.

JAMA

1.Demir O, Ayhan AO. Düzlemsel Olmayan Çatlak İlerleme Problemlerinin Üç Boyutlu Analizi. GUJS Part C. 2017;5:159–175.

MLA

Demir, Oğuzhan, and Ali Osman Ayhan. “Düzlemsel Olmayan Çatlak İlerleme Problemlerinin Üç Boyutlu Analizi”. Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji, vol. 5, no. 2, June 2017, pp. 159-75, https://izlik.org/JA98JC79GP.

Vancouver

1.Oğuzhan Demir, Ali Osman Ayhan. Düzlemsel Olmayan Çatlak İlerleme Problemlerinin Üç Boyutlu Analizi. GUJS Part C [Internet]. 2017 Jun. 1;5(2):159-75. Available from: https://izlik.org/JA98JC79GP