Effect of Particle Breakage and Shape on the Mechanical Behaviors of Granular Materials
Joint Authors
Wang, Yongxin
Shao, Shengjun
Wang, Zhi
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-10-27
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
The particle breakage property under loading is an important factor affecting the nonlinearity of the shear strength and stress-strain curves of coarse-grained soils.
The macromechanical behaviors of coarse granular materials under consolidation and drainage shearing were tested by using a large true triaxial apparatus.
The particle breakage mechanism has been analyzed by the fluctuation change of stress-strain curve and particle composition change.
It was shown that the particle shape is an extremely important microproperty of the influence of granular material breakage.
The variation rules of the internal friction angle and interlocking strength with the index of fine-grained breakage were sorted out, and the critical particle size for measuring the two friction modes under the given gradation was determined to be 1 mm.
In addition, the numerical analysis was conducted by simulating the microshape parameters of particles.
The conclusion is as follows: (1) The effect of shape parameters on shear strength can be simulated using the smoothness index Fd.
(2) Compared with spherical particles, irregular-shaped particles lead to a decrease in the number of strong force chains.
Moreover, more coordination numbers are needed to maintain a stable configuration, and the shear strength is improved.
American Psychological Association (APA)
Wang, Yongxin& Shao, Shengjun& Wang, Zhi. 2019. Effect of Particle Breakage and Shape on the Mechanical Behaviors of Granular Materials. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1116997
Modern Language Association (MLA)
Wang, Yongxin…[et al.]. Effect of Particle Breakage and Shape on the Mechanical Behaviors of Granular Materials. Advances in Civil Engineering No. 2019 (2019), pp.1-15.
https://search.emarefa.net/detail/BIM-1116997
American Medical Association (AMA)
Wang, Yongxin& Shao, Shengjun& Wang, Zhi. Effect of Particle Breakage and Shape on the Mechanical Behaviors of Granular Materials. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1116997
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1116997