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Crushing strength of artificial single-particle considering the effect of particle morphology
https://orcid.org/http://orcid.org/0000-0002-9411-4660
Particle geometry is a result of natural processes, such as the genesis of parent rock, particle transportation and depositional history. For granular materials, the particle morphology has a significant effect on its crushing strength in geotechnical engineering. The particle morphological parameters, sphericity, aspect ratio and convexity can be quantified with the aid of image processing techniques. In this study, a series of single-particle crushing tests were carried out to investigate the crushing strength and Weibull distribution of artificial single-particle while taking into account the effects of three representative particle morphologies: spherical, cubic and natural-morphology. On the basis of the test results, the crushing modes of the three particle morphologies were determined according to the force–displacement curves. The correlation between the survival probability and the given characteristic stress was discussed as well as the correlation between the 37% characteristic stress and the particle morphological parameters. In addition, the crushing strength distributions of the artificial particles with the three particle morphologies were described by Weibull distribution, and the Weibull moduli were also calculated. The applicability of Weibull distribution for granular materials with different morphologies was backed up further by a comparison of the predicted and observed average crushing stress. Then, the effect of particle morphology on the Weibull modulus was also presented. Furthermore, it can also be concluded that the fractal dimensions of different particle morphologies of the same materials differed under the same test conditions in the current study.
Crushing strength of artificial single-particle considering the effect of particle morphology
https://orcid.org/http://orcid.org/0000-0002-9411-4660
Particle geometry is a result of natural processes, such as the genesis of parent rock, particle transportation and depositional history. For granular materials, the particle morphology has a significant effect on its crushing strength in geotechnical engineering. The particle morphological parameters, sphericity, aspect ratio and convexity can be quantified with the aid of image processing techniques. In this study, a series of single-particle crushing tests were carried out to investigate the crushing strength and Weibull distribution of artificial single-particle while taking into account the effects of three representative particle morphologies: spherical, cubic and natural-morphology. On the basis of the test results, the crushing modes of the three particle morphologies were determined according to the force–displacement curves. The correlation between the survival probability and the given characteristic stress was discussed as well as the correlation between the 37% characteristic stress and the particle morphological parameters. In addition, the crushing strength distributions of the artificial particles with the three particle morphologies were described by Weibull distribution, and the Weibull moduli were also calculated. The applicability of Weibull distribution for granular materials with different morphologies was backed up further by a comparison of the predicted and observed average crushing stress. Then, the effect of particle morphology on the Weibull modulus was also presented. Furthermore, it can also be concluded that the fractal dimensions of different particle morphologies of the same materials differed under the same test conditions in the current study.
Crushing strength of artificial single-particle considering the effect of particle morphology
https://orcid.org/http://orcid.org/0000-0002-9411-4660
Particle geometry is a result of natural processes, such as the genesis of parent rock, particle transportation and depositional history. For granular materials, the particle morphology has a significant effect on its crushing strength in geotechnical engineering. The particle morphological parameters, sphericity, aspect ratio and convexity can be quantified with the aid of image processing techniques. In this study, a series of single-particle crushing tests were carried out to investigate the crushing strength and Weibull distribution of artificial single-particle while taking into account the effects of three representative particle morphologies: spherical, cubic and natural-morphology. On the basis of the test results, the crushing modes of the three particle morphologies were determined according to the force–displacement curves. The correlation between the survival probability and the given characteristic stress was discussed as well as the correlation between the 37% characteristic stress and the particle morphological parameters. In addition, the crushing strength distributions of the artificial particles with the three particle morphologies were described by Weibull distribution, and the Weibull moduli were also calculated. The applicability of Weibull distribution for granular materials with different morphologies was backed up further by a comparison of the predicted and observed average crushing stress. Then, the effect of particle morphology on the Weibull modulus was also presented. Furthermore, it can also be concluded that the fractal dimensions of different particle morphologies of the same materials differed under the same test conditions in the current study.
Crushing strength of artificial single-particle considering the effect of particle morphology
Acta Geotech.
Meng, Minqiang (author) / Xiao, Yang (author) / Duan, Xiaoyu (author) / Sun, Zengchun (author) / Du, Libin (author) / Fan, Henghui (author) / Liu, Hanlong (author)
Acta Geotechnica ; 17 ; 3909-3926
2022-09-01
18 pages
Article (Journal)
Electronic Resource
English
Artificial single-particle , Crushing strength , Overall regularity , Particle morphology , Weibull distribution Engineering , Geoengineering, Foundations, Hydraulics , Solid Mechanics , Geotechnical Engineering & Applied Earth Sciences , Soil Science & Conservation , Soft and Granular Matter, Complex Fluids and Microfluidics
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