Next Article in Journal
Effect of the Morphology of Tungsten Oxide Embedded in Sodium Alginate/Polyvinylpyrrolidone Composite Beads on the Photocatalytic Degradation of Methylene Blue Dye Solution
Previous Article in Journal
Carbon-Fiber Enriched Cement-Based Composites for Better Sustainability
Open AccessArticle

Research on the Fractal Characteristics and Energy Dissipation of Basalt Fiber Reinforced Concrete after Exposure to Elevated Temperatures under Impact Loading

by Wenbiao Liang 1, Junhai Zhao 1,*, Yan Li 2,* and Yue Zhai 2
1
Department of Civil engineering, School of Civil Engineering, Chang’an University, Xi’an 710061, China
2
Department of safety engineering, School of Geology Engineering and Geomatics, Chang’an University, Xi’an 710054, China
*
Authors to whom correspondence should be addressed.
Materials 2020, 13(8), 1902; https://doi.org/10.3390/ma13081902
Received: 11 March 2020 / Revised: 8 April 2020 / Accepted: 15 April 2020 / Published: 17 April 2020
The fractal characteristics and energy dissipation of basalt fiber reinforced concrete (BFRC) with five kinds of fiber volume contents (0.0%, 0.1%, 0.2%, 0.3%, 0.4%) after exposure to different temperatures (20 °C, 200 °C, 400 °C, 600 °C, 800 °C) under impact loading were investigated by using a 50 mm diameter split Hopkinson pressure bar (SHPB) apparatus. Scale-mass distribution rules and fractal dimension characteristics of fragments were studied based on the screening statistical method and the fractal theory. Furthermore, the relationship between the energy consumption density and the fractal dimension of fragments was established, and the effects of fiber content, temperature and impact velocity on fractal dimension and absorption energy were analyzed. The results show that the crushing severity of fragments and fractal dimension increase with the impact velocity under the same fiber content. The energy consumption density increases first and then decreases with increasing fiber content, and also decreases with increasing temperature. When the temperature and fiber content remain unchanged, the energy consumption density increases linearly with the increasing fractal dimension, and under the same impact velocity and temperature, there is no obvious linear relationship between energy consumption density and fractal dimension. View Full-Text
Keywords: basalt fiber; concrete; elevated temperatures; SHPB; impact velocity; fractal characteristics; energy dissipation basalt fiber; concrete; elevated temperatures; SHPB; impact velocity; fractal characteristics; energy dissipation
Show Figures

Figure 1

MDPI and ACS Style

Liang, W.; Zhao, J.; Li, Y.; Zhai, Y. Research on the Fractal Characteristics and Energy Dissipation of Basalt Fiber Reinforced Concrete after Exposure to Elevated Temperatures under Impact Loading. Materials 2020, 13, 1902.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop