A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effect of the Inclination Angle of Hooked Steel Fiber on the Flexural Behavior of Steel Fiber Reinforced Concrete
The inclusion of metallic fibers within concrete is a widespread approach for improving crack resistance, energy-absorbing abilities, and longevity. The geometry of the fibers, which usually have a hooked end, has a significant impact on boosting the fiber-matrix bond as well as the mechanical properties of both the fiber and the concrete. This research looked at the strength and failure behavior of concrete with hooked-end steel fibers. For this, specimens for the flexural test were cast using hooked steel fibers with inclination angles of 120, 135, and 150°, a diameter of 0.75 mm, and multiple hooked lengths (50 and 60 mm). A numerical analysis was conducted to model flexural members with ANSYS 2022. To validate the numerical study, a four-point bending experiment was performed. A better understanding of the effects of hooked length and inclination angle was revealed. As fiber dosages and lengths increase, flexural strength also increases. On the contrary, increasing the hooked angle above 135º had little effect on enhancing flexural strength; as a result, a hooked angle of 135º was regarded as the most suitable option. The optimal steel percentage was revealed to be 2%, the hook length was 60 mm, and the inclination angle was 135° for ultimate strength.
Effect of the Inclination Angle of Hooked Steel Fiber on the Flexural Behavior of Steel Fiber Reinforced Concrete
The inclusion of metallic fibers within concrete is a widespread approach for improving crack resistance, energy-absorbing abilities, and longevity. The geometry of the fibers, which usually have a hooked end, has a significant impact on boosting the fiber-matrix bond as well as the mechanical properties of both the fiber and the concrete. This research looked at the strength and failure behavior of concrete with hooked-end steel fibers. For this, specimens for the flexural test were cast using hooked steel fibers with inclination angles of 120, 135, and 150°, a diameter of 0.75 mm, and multiple hooked lengths (50 and 60 mm). A numerical analysis was conducted to model flexural members with ANSYS 2022. To validate the numerical study, a four-point bending experiment was performed. A better understanding of the effects of hooked length and inclination angle was revealed. As fiber dosages and lengths increase, flexural strength also increases. On the contrary, increasing the hooked angle above 135º had little effect on enhancing flexural strength; as a result, a hooked angle of 135º was regarded as the most suitable option. The optimal steel percentage was revealed to be 2%, the hook length was 60 mm, and the inclination angle was 135° for ultimate strength.
Effect of the Inclination Angle of Hooked Steel Fiber on the Flexural Behavior of Steel Fiber Reinforced Concrete
Lecture Notes in Civil Engineering
Arthur, Scott (editor) / Saitoh, Masato (editor) / Hoque, Asiful (editor) / Mahmud, J. A. (author) / Islam, A. (author) / Hosen, M. S. (author)
International Conference on Advances in Civil Engineering ; 2022 ; Bangladesh, India
Proceedings of the 6th International Conference on Advances in Civil Engineering ; Chapter: 23 ; 273-284
2024-01-12
12 pages
Article/Chapter (Book)
Electronic Resource
English
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