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Research Article

Single edge crack fracture behavior of S2 glass/epoxy under different temperature, strain rate and crack length

Zafer Kaya1, H Ersen Balcioglu2, Halit Gün2

1Graduate School of Natural and Applied Sciences, Uşak University, Uşak 64100, Turkey

2Department of Mechanical Engineering, Uşk University, Uşak 64100, Turkey

Keywords

Abstract



S-2 glass/epoxy; 

Fracture toughness; 

Strain energy release rate; 

 J-integral method; 

Deformation rate; 

Temperature effect; 

Finite Element Method


S-2 glass fiber draws attention because of its higher strength and elasticity module compared to other glass fiber types. When cracks occur on these structures, which have their distinctive strength properties, they may suddenly lose their physical life or in a shorter time than they should be. In this study, the fracture behaviors of S-2 glass fiber reinforced composite materials for different temperatures, deformation rate, and crack geometry were investigated. To investigate the effects of crack geometry on fracture behavior, cracks were formed on S-2 glass/epoxy composites in two different lengths (10mm and 15mm) and at two different angles (0° and 45°). Fracture tests were performed at two different environments impending cold (-20°C) and hot (80°C), and three different tensile strain rates (8.3×10-3, 8.3×10-4, and 8.3×10-5 s-1). For these experimental conditions, opening mode (Mode I) and mixed-mode (Mode I/II) fracture toughness values (KC) and strain energy release rates (GC) were investigated experimentally and numerically. The Jintegral method was used to calculate numerical fracture toughness. Experimental results have shown that fracture toughness increases with increasing temperature and crack length in general. As the deformation rate increases, fracture toughness decreases. Also, identical expressions that define experimentally and numerically calculated fracture were found close to each other. Jintegral method was found to be a successful method to analyze the fracture behavior of fiber-reinforced composites.

© 2021 MIM Research Group. All rights reserved.

LATEST News


15/03/2021 Collaboration for ICWET'21: Editorial Board of our journal and Organizing Committee of the6th International Conference on Welding Technologies and Exibition (ICWET’21) have agreed to collaborate. Extended versions of the selected papers from the conference will be published in our journal. For more see Events.


11/02/2021 Collaboration for ULIBTK 2021: Editorial Board of our journal and Organizing Committee of the 23. Congress on Thermal Science and Technology (ULIBTK 2021) have agreed to collaborate. Extended versions of the selected papers from the conference will be published in our journal. For more see Events.


31/12/2020 Most Cited Award: 

According to the Editorial Board evaluation, the paper authored by Nelson Batista, Rui Melicio, Victor Mendes entitled as “Darrieus vertical axis wind turbines: methodology to study the self-start capabilities considering symmetric and asymmetric airfoils" is awarded the 2020 Most Cited Paper Award of Research on Engineering Structures and Materials (RESM).


31/12/2020 Best Paper Award:

According to the Advisory Board decision, the paper authored by Marcelo Mesquita do Amaral, Matheus Wanglon Ferreira and Mauro de Vasconcellos Real entitled as “A simplified method for analysis of reinforced concrete beams exposed to fire situation” is awarded the 2020 Best Paper Award of Research on Engineering Structures and Materials (RESM).


02/11/2020 Indexed by SCOPUS: We are informed that our journal is accepted to be included in the SCOPUS Index. See news for more info.


(More details of the news may be given in the News section)


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LATEST AWARDS


2020 Most Cited Paper Award:

The paper authored by Nelson Batista, Rui Melicio, Victor Mendes entitled as “Darrieus vertical axis wind turbines: methodology to study the self-start capabilities considering symmetric and asymmetric airfoils" is awarded the


2020 Best Paper Award:

The paper authored by Ahsen Ünal, Işıl Özer, Melek Erol Taygun, Sadriye Küçükbayrak entitled as “Fabrication and in-vitro evaluation of copper doped bioactive glass/polymer composite scaffolds for bone tissue engineering” is awarded the 


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Last Update:

17.06.2021

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