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Journals / Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi / 2019 / Cilt: 8 Sayı: 1

STATISTICAL ANALYSIS OF MODE-I DELAMINATION RESISTANCE OF LAMINATED COMPOSITES TOUGHENED BY POLYAMIDE 6,6 (PA 66) MICROFIBERS

POLİAMİD 6/6 (PA 66) MİKROFİBERLER İLE TOKLAŞTIRILMIŞ TABAKALI KOMPOZİTLERİN MOD-I DELAMİNASYON DİRENCİNİN İSTATİKSEL ANALİZİ

Bertan Beylergil(ALANYA ALAADDİN KEYKUBAT ÜNİVERSİTESİ)0000-0002-3204-6746
Metin Tanoğlu(İZMİR YÜKSEK TEKNOLOJİ ENSTİTÜSÜ)0000-0001-9770-1302
Engin Aktaş(İZMİR YÜKSEK TEKNOLOJİ ENSTİTÜSÜ)0000-0002-5706-2101
Pages
429–435
Publication Date
2019-01-28
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The statistical analyses of the test data showed that the use of PA 66 microfibers could improve Mode-I fracture toughness by as much as 445% at a 90% confidence level.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Fiber reinforced composites are being extensively used in many applications such as aerospace and automotive structural components due to their specific strength and stiffness.
📊
Key Findings & Data:In this study, the Mode-I delamination resistance of carbon fiber/epoxy composites toughened by polyamide 6/6 (PA 66) microfibers has been statistically analyzed using Weibull distribution.
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Conclusion & Impact:The statistical analyses of the test data showed that the use of PA 66 microfibers could improve Mode-I fracture toughness by as much as 445% at a 90% confidence level.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Tabakalı kompozitler · Mikrofiberler · Kırılma tokluğu

Abstract

Fiber reinforced composites are being extensively used in many applications such as aerospace and automotive structural components due to their specific strength and stiffness. Delamination is the most common and critical failure mode observed in these composites. Many different methods such as epoxy toughening by nanofillers, stitching, z-pinning and micro/nanofiber interleaving have been developed to improve their delamination resistance. In this study, the Mode-I delamination resistance of carbon fiber/epoxy composites toughened by polyamide 6/6 (PA 66) microfibers has been statistically analyzed using Weibull distribution. The statistical analyses of the test data showed that the use of PA 66 microfibers could improve Mode-I fracture toughness by as much as 445% at a 90% confidence level.

Özet

Fiber takviyeli kompozitler, ağırlıklarına oranla yüksek mukavemet ve rijitlikleri nedeniyle uzay ve otomotiv yapısal parçalarında yaygın olarak kullanılmaktadır. Delaminasyon, bu kompozitlerde görülen en yaygın ve kritik hasar modudur. Bu kompozitlerin delaminasyon direncini arttırmak amacıyla, nanokatkılar ile epoksi toklaştırması, dikişleme, z-pimler ve arayüzeyde mikro/nanofiber kullanılması gibi pek çok sayıda teknik geliştirilmiştir. Bu çalışmada, poliamid 6/6 (PA 66) mikrofiberler ile toklaştırılmış karbon fiber/epoksi kompozitlerin Mode-I delaminasyon direnci Weibull dağılımı kullanılarak istatiksel olarak analiz edilmiştir. Test verilerinin istatiksel olarak değerlendirilmesi sonucunda PA 66 mikrofiberlerin kullanılmasının %90 güven seviyesinde kırılma tokluğunu yaklaşık %445 mertebesinde arttırdığı gözlemlenmiştir.

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Cite This Article

Beylergil, B., Tanoğlu, M., Aktaş, E., *, B. B. (2019). STATISTICAL ANALYSIS OF MODE-I DELAMINATION RESISTANCE OF LAMINATED COMPOSITES TOUGHENED BY POLYAMIDE 6,6 (PA 66) MICROFIBERS. Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, Cilt: 8 Sayı: 1, 429–435. https://doi.org/10.28948/ngumuh.517158

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