Yıl: 2020 Cilt: 32 Sayı: 3 Sayfa Aralığı: 295 - 302 Metin Dili: İngilizce DOI: 10.7240/jeps.651164 İndeks Tarihi: 04-11-2020

Investigation of Mixed-Mode Fatigue Crack Growth Phenomenon with a New Computational Procedure

Öz:
Analysis of 3-D fatigue crack growth problems with mixed-mode loading has always been an interesting area in the field offracture mechanics. Fracture failure under the influence of fatigue loading has been a common experience for variousindustries’ products, such as aerospace and automotive components. Any possible failure in these structures can result in highdamage to these components or a serious risk for people’s health. The analysis of such failures may involve great challengesand complexities for obtaining the accurate solution. The complexities of the problem may not only be related to the loadingtype, but also to the specific geometry itself. Such problems are hard and costly to analyze with experimental methods.Therefore, it is important to establish the theoretical aspects of the process initially, and then having a computationalprocedure to solve the problem at hand. The crack growth law used in this procedure is NASGRO-type, and determination ofthe propagation angle is based on the maximum hoop stress criterion. Hypermesh and ANSYS APDL software are benefitedduring preprocessing of the propagation steps and application of submodeling procedure. Solution of the problem isperformed with FRAC3D program, its enriched element methodology and newly implemented tools for crack growth. Aspecific example that includes cracking within an aircraft engine compressor blade is shown for demonstration purpose.
Anahtar Kelime:

Karışık Modlu Yorulma Çatlak Büyümesi Olayının Yeni Bir Hesaplamalı Yöntem ile İncelenmesi

Öz:
Üç boyutlu ve karışık modlu yorulma çatlak büyümesi problemleri kırılma mekaniği açısından her zaman ilgi çekici bir alan olmuştur. Hava-uzay ve otomotiv gibi endüstrilerdeki ürünlerin yorulmaya bağlı olarak kırılma sonucu meydana gelen hataları oldukça yaygındır. Bu ürünlerdeki herhangi bir hata veya başarısızlık, komponentlerine yüksek bir hasar veya insan sağlığı açısından yüksek risk olarak sonuçlanabilir. Bu tür hata veya arızaların analizi ile doğru sonucu bulmaya çalışmak belli bir zorluk ve karmaşıklık içerebilir. Problemlerdeki karışıklıklar hem yükleme çeşidiyle hem de belli bir geometri ile alakalı olarak ortaya çıkabilir. Bahsi geçen problemlerin deneysel yöntemler kullanarak analizi zor ve maliyetli olabilir. Bu sebeple, başlangıçta sürecin teorik yönlerini kurmak ve sonrasında çözüm için hesaplamalı bir yöntem ol uşturmak eldeki problemin çözümü açısından önemlidir. Çalışmada kullanılan çatlak büyüme kanunu NASGRO modelidir ve ilerleme açısının belirlenmesi de maksimum çevresel gerilme kriteriyle gerçekleştirilmektedir. İlerleme aşamalarının ön -işlem sürecinde ve alt modelleme tekniğinin faydalanılmasında Hypermesh ve ANSYS APDL programları kullanılmaktadır. Problemin çözüm kısmı ise FRAC3D programı ve bünyesindeki zenginleştirilmiş elemanlar ile yeni geliştirilmiş çatlak büyüme araçlarıyla yapılmaktadır. Örnekleme amacıyla uçak motorundaki kompresörün kanat kısmındaki çatlakların incelenmesine yer verilecektir.
Anahtar Kelime:

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
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APA Saribay M (2020). Investigation of Mixed-Mode Fatigue Crack Growth Phenomenon with a New Computational Procedure. , 295 - 302. 10.7240/jeps.651164
Chicago Saribay Murat Investigation of Mixed-Mode Fatigue Crack Growth Phenomenon with a New Computational Procedure. (2020): 295 - 302. 10.7240/jeps.651164
MLA Saribay Murat Investigation of Mixed-Mode Fatigue Crack Growth Phenomenon with a New Computational Procedure. , 2020, ss.295 - 302. 10.7240/jeps.651164
AMA Saribay M Investigation of Mixed-Mode Fatigue Crack Growth Phenomenon with a New Computational Procedure. . 2020; 295 - 302. 10.7240/jeps.651164
Vancouver Saribay M Investigation of Mixed-Mode Fatigue Crack Growth Phenomenon with a New Computational Procedure. . 2020; 295 - 302. 10.7240/jeps.651164
IEEE Saribay M "Investigation of Mixed-Mode Fatigue Crack Growth Phenomenon with a New Computational Procedure." , ss.295 - 302, 2020. 10.7240/jeps.651164
ISNAD Saribay, Murat. "Investigation of Mixed-Mode Fatigue Crack Growth Phenomenon with a New Computational Procedure". (2020), 295-302. https://doi.org/10.7240/jeps.651164
APA Saribay M (2020). Investigation of Mixed-Mode Fatigue Crack Growth Phenomenon with a New Computational Procedure. International journal of advances in engineering and pure sciences (Online), 32(3), 295 - 302. 10.7240/jeps.651164
Chicago Saribay Murat Investigation of Mixed-Mode Fatigue Crack Growth Phenomenon with a New Computational Procedure. International journal of advances in engineering and pure sciences (Online) 32, no.3 (2020): 295 - 302. 10.7240/jeps.651164
MLA Saribay Murat Investigation of Mixed-Mode Fatigue Crack Growth Phenomenon with a New Computational Procedure. International journal of advances in engineering and pure sciences (Online), vol.32, no.3, 2020, ss.295 - 302. 10.7240/jeps.651164
AMA Saribay M Investigation of Mixed-Mode Fatigue Crack Growth Phenomenon with a New Computational Procedure. International journal of advances in engineering and pure sciences (Online). 2020; 32(3): 295 - 302. 10.7240/jeps.651164
Vancouver Saribay M Investigation of Mixed-Mode Fatigue Crack Growth Phenomenon with a New Computational Procedure. International journal of advances in engineering and pure sciences (Online). 2020; 32(3): 295 - 302. 10.7240/jeps.651164
IEEE Saribay M "Investigation of Mixed-Mode Fatigue Crack Growth Phenomenon with a New Computational Procedure." International journal of advances in engineering and pure sciences (Online), 32, ss.295 - 302, 2020. 10.7240/jeps.651164
ISNAD Saribay, Murat. "Investigation of Mixed-Mode Fatigue Crack Growth Phenomenon with a New Computational Procedure". International journal of advances in engineering and pure sciences (Online) 32/3 (2020), 295-302. https://doi.org/10.7240/jeps.651164