@Article{cmes.2021.015406,
AUTHOR = {Tao Zhang, Ke Xu, Wenxiong Huang},
TITLE = {Analysis of One-Dimensional Compression under a Wide Range of Stress with Densely Arrayed BPM},
JOURNAL = {Computer Modeling in Engineering \& Sciences},
VOLUME = {127},
YEAR = {2021},
NUMBER = {3},
PAGES = {1101--1117},
URL = {http://www.techscience.com/CMES/v127n3/42610},
ISSN = {1526-1506},
ABSTRACT = {In this paper, the densely arrayed bonded particle model is proposed for simulation of granular materials with discrete element method (DEM) considering particle crushing. This model can solve the problem of pore calculation
after the grains are crushed, and reduce the producing time of specimen. In this work, several one-dimensional
compressing simulations are carried out to investigate the effect of particle crushing on mechanical properties of
granular materials under a wide range of stress. The results show that the crushing process of granular materials
can be divided into four different stages according to e<sub>r</sub>-logσ<sub>y</sub> curves. At the end of the second stage, there exists
a yield point, after which the physical and mechanical properties of specimens will change significantly. Under
extremely high stress, particle crushing will wipe some initial information of specimens, and specimens with
different initial gradings and void ratios present some similar characteristics. Particle crushing has great influence
on grading, lateral pressure coefficient and compressibility of granular materials, and introduce extra irreversible
volume deformation, which is necessary to be considered in modelling of granular materials in wide stress range.},
DOI = {10.32604/cmes.2021.015406}
}