LOW-VELOCITY IMPACT BEHAVIOR OF GLASS FIBER/EPOXY-ALUMINUM HONEYCOMB CORE SANDWICH COMPOSITES WITH VARYING FIBER ORIENTATIONS AND CORE THICKNESSES: EXPERIMENTAL STUDY

Mustafa Yaman; Kübra Çağla Çıbıkçı

TR EN

DEĞİŞEN ELYAF YÖNLENDİRMELERİ VE ÇEKİRDEK KALINLIKLARINA SAHİP CAM ELYAF/EPOKSİ-ALÜMİNYUM PETEK ÇEKİRDEK SANDVİÇ KOMPOZİTLERİN DÜŞÜK HIZLI DARBE DAVRANIŞI: DENEYSEL ÇALIŞMA

Abstract

Bu çalışmada, cam elyaf/epoksi yüzey tabakaları ve alüminyum petek çekirdekten oluşan sandviç kompozitlerin düşük hızlı darbe davranışı, yüzey tabakası dizilimi ve çekirdek kalınlığına odaklanılarak deneysel olarak incelenmiştir. [0/0/0/0]s, [0/90/90/0]s ve [45/-45/-45/45]s olmak üzere üç yüzey tabakası konfigürasyonu ile 6, 10 ve 15 mm kalınlığındaki petek çekirdekler değerlendirilmiştir. Düşük hızlı darbe testleri ASTM D7136 standardına göre gerçekleştirilmiş ve darbe performansı kuvvet-yer değiştirme tepkileri ile görünür hasar üzerinden değerlendirilmiştir. Sonuçlar, elyaf yönelimi ve çekirdek kalınlığının darbe direnci ve hasar mekanizmalarını önemli ölçüde etkilediğini göstermiştir. Çapraz katmanlı numuneler daha yüksek başlangıç tepe kuvveti direnci gösterirken, açılı katmanlı numuneler daha geniş bir yer değiştirme aralığında yüksek enerji sönümleme ile daha ilerlemeli ve sünek bir hasar davranışı sergilemiştir. Çekirdek kalınlığının artırılması, darbe enerjisinin alt bölgelere iletimini ve alt yüzey tabakasındaki hasar şiddetini azaltmıştır. Bulgular, uygun yüzey tabakası yönelimi ve çekirdek kalınlığı seçiminin havacılık, otomotiv ve denizcilik uygulamalarına yönelik sandviç kompozitlerin darbe performansını iyileştirebileceğini göstermektedir.

Keywords

Supporting Institution

Türkiye Bilimsel ve Teknolojik Araştırma Kurumu (TÜBİTAK)

Project Number

108M544

Ethical Statement

Bu çalışma için Etik Kurul Onayı gerekmemektedir.

Thanks

Bu çalışmada, Türkiye Bilimsel ve Teknolojik Araştırma Kurumu (TÜBİTAK) tarafından yürütülen 108M544 No'lu proje kapsamında elde edilen veriler kullanılmış olup, veri toplama, proje desteği ve çalışmanın aşamalarında bize verdikleri değerli katkılardan dolayı tüm proje ortaklarımıza teşekkür ederiz.

LOW-VELOCITY IMPACT BEHAVIOR OF GLASS FIBER/EPOXY-ALUMINUM HONEYCOMB CORE SANDWICH COMPOSITES WITH VARYING FIBER ORIENTATIONS AND CORE THICKNESSES: EXPERIMENTAL STUDY

Abstract

This research experimentally investigates the low-velocity impact response of sandwich composites with glass fiber/epoxy face sheets and aluminum honeycomb cores, focusing on face sheet layup and core thickness. Three face sheet configurations, [0/0/0/0]s, [0/90/90/0]s, and [45/-45/-45/45]s, and honeycomb cores with thicknesses of 6, 10, and 15 mm were examined. Low-velocity impact tests were conducted according to ASTM D7136, and impact performance was evaluated through force-displacement responses and visible damage. The results showed that fiber orientation and core thickness significantly influenced impact resistance and damage mechanisms. Cross-ply specimens exhibited higher initial peak force resistance, whereas angle-ply specimens showed a more progressive and ductile failure behavior with enhanced energy dissipation over a larger displacement range. Increasing core thickness reduced impact energy transmission to the lower regions and decreased damage severity in the lower face sheet. These findings demonstrate that appropriate selection of face sheet orientation and core thickness can improve the impact performance of sandwich composites for aerospace, automotive, and marine applications.

Keywords

Supporting Institution

Scientific and Technological Research Council of Türkiye (TUBITAK)

Project Number

108M544

Ethical Statement

Not Applicable.

Thanks

This study used data obtained within the scope of the Scientific and Technological Research Council of Türkiye (TUBITAK) project, Grant No: 108M544, and we would like to thank all project collaborators for their valuable contributions to data collection, project support, and input during the stages of this work.

References

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Details

Primary Language

English

Subjects

Mechanical Engineering (Other)

Journal Section

Research Article

Authors

Mustafa Yaman ^*
0000-0002-6929-8058
Türkiye

Kübra Çağla Çıbıkçı
0000-0002-4060-5608
Türkiye

Publication Date

September 3, 2026

Submission Date

September 19, 2025

Acceptance Date

March 2, 2026

Published in Issue

Year 2026 Volume: 29 Number: 3

IZ

https://izlik.org/JA98SU45LT

Cite

RIS / Bibtex

APA

Yaman, M., & Çıbıkçı, K. Ç. (2026). LOW-VELOCITY IMPACT BEHAVIOR OF GLASS FIBER/EPOXY-ALUMINUM HONEYCOMB CORE SANDWICH COMPOSITES WITH VARYING FIBER ORIENTATIONS AND CORE THICKNESSES: EXPERIMENTAL STUDY. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 29(3), 1291-1308. https://izlik.org/JA98SU45LT

AMA

1.Yaman M, Çıbıkçı KÇ. LOW-VELOCITY IMPACT BEHAVIOR OF GLASS FIBER/EPOXY-ALUMINUM HONEYCOMB CORE SANDWICH COMPOSITES WITH VARYING FIBER ORIENTATIONS AND CORE THICKNESSES: EXPERIMENTAL STUDY. KSU J. Eng. Sci. 2026;29(3):1291-1308. https://izlik.org/JA98SU45LT

Chicago

Yaman, Mustafa, and Kübra Çağla Çıbıkçı. 2026. “LOW-VELOCITY IMPACT BEHAVIOR OF GLASS FIBER EPOXY-ALUMINUM HONEYCOMB CORE SANDWICH COMPOSITES WITH VARYING FIBER ORIENTATIONS AND CORE THICKNESSES: EXPERIMENTAL STUDY”. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi 29 (3): 1291-1308. https://izlik.org/JA98SU45LT.

EndNote

Yaman M, Çıbıkçı KÇ (September 1, 2026) LOW-VELOCITY IMPACT BEHAVIOR OF GLASS FIBER/EPOXY-ALUMINUM HONEYCOMB CORE SANDWICH COMPOSITES WITH VARYING FIBER ORIENTATIONS AND CORE THICKNESSES: EXPERIMENTAL STUDY. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi 29 3 1291–1308.

IEEE

[1]M. Yaman and K. Ç. Çıbıkçı, “LOW-VELOCITY IMPACT BEHAVIOR OF GLASS FIBER/EPOXY-ALUMINUM HONEYCOMB CORE SANDWICH COMPOSITES WITH VARYING FIBER ORIENTATIONS AND CORE THICKNESSES: EXPERIMENTAL STUDY”, KSU J. Eng. Sci., vol. 29, no. 3, pp. 1291–1308, Sept. 2026, [Online]. Available: https://izlik.org/JA98SU45LT

ISNAD

Yaman, Mustafa - Çıbıkçı, Kübra Çağla. “LOW-VELOCITY IMPACT BEHAVIOR OF GLASS FIBER EPOXY-ALUMINUM HONEYCOMB CORE SANDWICH COMPOSITES WITH VARYING FIBER ORIENTATIONS AND CORE THICKNESSES: EXPERIMENTAL STUDY”. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi 29/3 (September 1, 2026): 1291-1308. https://izlik.org/JA98SU45LT.

JAMA

1.Yaman M, Çıbıkçı KÇ. LOW-VELOCITY IMPACT BEHAVIOR OF GLASS FIBER/EPOXY-ALUMINUM HONEYCOMB CORE SANDWICH COMPOSITES WITH VARYING FIBER ORIENTATIONS AND CORE THICKNESSES: EXPERIMENTAL STUDY. KSU J. Eng. Sci. 2026;29:1291–1308.

MLA

Yaman, Mustafa, and Kübra Çağla Çıbıkçı. “LOW-VELOCITY IMPACT BEHAVIOR OF GLASS FIBER EPOXY-ALUMINUM HONEYCOMB CORE SANDWICH COMPOSITES WITH VARYING FIBER ORIENTATIONS AND CORE THICKNESSES: EXPERIMENTAL STUDY”. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, vol. 29, no. 3, Sept. 2026, pp. 1291-08, https://izlik.org/JA98SU45LT.

Vancouver

1.Mustafa Yaman, Kübra Çağla Çıbıkçı. LOW-VELOCITY IMPACT BEHAVIOR OF GLASS FIBER/EPOXY-ALUMINUM HONEYCOMB CORE SANDWICH COMPOSITES WITH VARYING FIBER ORIENTATIONS AND CORE THICKNESSES: EXPERIMENTAL STUDY. KSU J. Eng. Sci. [Internet]. 2026 Sep. 1;29(3):1291-308. Available from: https://izlik.org/JA98SU45LT