MIXED MODE FRACTURE OF THE GEOPOLYMER COMPOSITES REINFORCED WITH RECYCLED STEEL FIBERS

Muhammed Gümüş; Hakan Bayrak

doi:10.17780/ksujes.1375088

EN TR

MIXED MODE FRACTURE OF THE GEOPOLYMER COMPOSITES REINFORCED WITH RECYCLED STEEL FIBERS

Abstract

For the fiber-reinforced composites, strength-based criteria alone may fail to evaluate the bending response due to the long tail of the load-displacement curve. Hence, the fracture characterization of fibered composites has gained great attention worldwide. In this study, the mixed-mode fracture performance of the recycled steel fiber-reinforced geopolymer concrete was examined experimentally. The main test parameters were the amount of steel fibers (0 and 2% by mass) and the offset ratios of the edge notch (β = 0, 0.2, and 0.4). Several notched prisms were produced and tested under a deformation-controlled three-point bending test. Deformation maps on the surface of the specimens were derived through the digital image correlation method. Experimental results were discussed concerning the first cracking load, ultimate load, critical crack mouth opening displacement, critical crack mouth sliding displacement, and fracture energy. Based on the experimental findings, it can be stated that the peak flexural loads were increased by 666%, 1327%, and 400%, respectively for the 0, 0.2, and 0.4 notch offset ratios due to the use of recycled steel fiber. The fracture energies of the plain specimens were proportional to the notch offset ratio, but they fluctuated for the fiber-reinforced specimens because of the uneven distribution of fibers.

Keywords

Kaynakça

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Ayrıntılar

Birincil Dil

İngilizce

Konular

Kırılma Mekaniği , Yapı Malzemeleri

Bölüm

Araştırma Makalesi

Yazarlar

Muhammed Gümüş ^*
0000-0002-7380-0098
Türkiye

Hakan Bayrak
0000-0001-9441-2214
Türkiye

Yayımlanma Tarihi

3 Mart 2024

Gönderilme Tarihi

12 Ekim 2023

Kabul Tarihi

8 Kasım 2023

Yayımlandığı Sayı

Yıl 1970 Cilt: 27 Sayı: 1

DOI

https://doi.org/10.17780/ksujes.1375088

IZ

https://izlik.org/JA92CG59ED

Kaynak Göster

RIS / Bibtex

APA

Gümüş, M., & Bayrak, H. (2024). MIXED MODE FRACTURE OF THE GEOPOLYMER COMPOSITES REINFORCED WITH RECYCLED STEEL FIBERS. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 27(1), 232-242. https://doi.org/10.17780/ksujes.1375088

ATIK ÇELİK LİFLERLE GÜÇLENDİRİLMİŞ GEOPOLİMER BETONLARDA KARIŞIK MOD KIRILMASI

MIXED MODE FRACTURE OF THE GEOPOLYMER COMPOSITES REINFORCED WITH RECYCLED STEEL FIBERS

Abstract

Keywords

ATIK ÇELİK LİFLERLE GÜÇLENDİRİLMİŞ GEOPOLİMER BETONLARDA KARIŞIK MOD KIRILMASI

Öz

Anahtar Kelimeler

Kaynakça

Ayrıntılar

Birincil Dil

Konular

Bölüm

Yazarlar

Yayımlanma Tarihi

Gönderilme Tarihi

Kabul Tarihi

Yayımlandığı Sayı

DOI

IZ

Kaynak Göster