This repository contains the simulation code and postprocessing tools used in the following studies on the micromechanical behavior of sand–rubber mixtures under shear:
-
Hu, Z., Shi, Y. H., Guo, N., & Yang, Z. X. (2022)
Micromechanical investigation of the shear behaviors of sand‒rubber mixtures using a multibody meshfree method.
Granular Matter, 24(3), 73.
DOI: 10.1007/s10035-022-01294-w -
Guo, N., Shi, Y., Hu, Z., & Yang, Z. (2023)
Shear behaviour of sand–rubber mixtures: interpretation from energy transformation and force chain evolution.
Géotechnique, 75(1), 41–55.
DOI: 10.1680/jgeot.21.P.205
This code implements a multibody meshfree method for simulating the large-deformation behavior of sand–rubber mixtures under drained shear. The rubber particles are modeled as deformable hyperelastic bodies, while sand particles are represented as rigid bodies with frictional contact.
Key features:
- Rigid–deformable multibody coupling
- Implicit contact algorithm
- Energy tracking and force chain analysis
- Reproducible cases from published journal articles
- MATLAB (for preprocessing scripts if needed)
For detailed instructions, please refer to MELODY_USER_GUIDE_3.94.pdf in this repository.
Tools are provided in the postprocessing/ folder for:
- Stress–strain curves
- Energy dissipation analysis
- Force chain visualization
- Particle motion and rotation tracking
This code is based on MELODY 2D v3.94 developed by Guilhem Mollon (INSA Lyon).
We gratefully acknowledge the original author to provide the full user guide (MELODY_USER_GUIDE_3.94.pdf) in this repository for reference.
This project is released under the MIT License unless stated otherwise in individual source files.
Yihao Shi
📧 shiyh99 [at] gmail.com
🔗 https://github.com/Yihao-Shi