Database-Calculation model of joint particle size
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Copyright belongs to Jichao Sun
Please mention my name in your work, when you use this Database.
Jichao Sun.  Database-Calculation model of joint particle size.
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[1] Sun Jichao*. Joint particle size calculation model (JCM): a neural network approach for efficient rock and soil simulation. Baltica, 2025, 38(1): 32-44.

[2] Sun Jichao*, Huang Yuefei. Modeling the Simultaneous Effects of Particle Size and Porosity in Simulating Geo-Materials. Materials, 2022, 15: 15041576.

[3] Sun Jichao*. Joint particles model database for discrete element numerical simulation. International Journal of Ground Sediment & Water, 2022, 16: 973-976.

[4] Sun Jichao*. Permeability of particle soils under soil pressure. Transport in Porous Media, 2018, 123(2): 257-270.

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If you have any questions, please contact Jichao Sun
Email: jichao@email.com
Chinese weixin and mobile: 13120258076
School of Water Resource and Environment, China University of Geosciences, Beijing 100083, China
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NMPS_database *******  download  *******

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a) Coral rock. The dark ones are the coral skeletons, and the colored ones are the fillings between them;

b) skeletons and fillings boundary, the blue part is chosen to be studied;

c) different numbers of spherical particles simulating one filling, the quantity is 1, 5, 10, 50, 100, 500 and 1000;

d) different diameter ball filling;

e) ball discrete element simulation of soil tensile crack failure to obtain the strain and stress;

f) gradation difference of the ball and joint particle discrete element simulate particle;

g) the rotation process of calculating the particle size

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The result:

The width is            7.06244.
The length is            8.88102.
The rotation angle is 122.04.

The coordinates and radius of five balls
6.60454 2.48448 2.66639
8.45443 3.68602 2.08578
5.28796 4.72583 2.7008
7.34658 4.02671 2.69508
4.08486 4.28201 2.77508

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a) Four ball particles composite a joint particle;

b)  the maximum width rectangle covering the joint particle;

c)  some joint particles with its own the maximum width rectangle;

d)  joint particles passing through the sieve by rotation at the maximum width of its rectangle; the solid ball is the elementary ball;

the solid black block is the soil particle. Soils consist of many joint soil particles, and joint soil particles consist of solid balls.

Width and height denote the joint soil particle's width and height, respectively.

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a) Single-particle/circular particle/ball particle;

b) one crystal that is a joint particle/crystal particle;

c) partial enlargement of a joint particle;

d) crystal in marble slice. 1, 2, 3, 4, and 5 are five crystals in a marble slice

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