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17 changes: 11 additions & 6 deletions README.md
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# PeriDEM - High-fidelity modeling of granular media consisting of deformable complex-shaped particles

[![Codacy Badge](https://api.codacy.com/project/badge/Grade/eba90e085ba048cb8f895010b8f13b03)](https://app.codacy.com/gh/prashjha/PeriDEM?utm_source=github.com&utm_medium=referral&utm_content=prashjha/PeriDEM&utm_campaign=Badge_Grade_Settings) [![CircleCI](https://circleci.com/gh/prashjha/PeriDEM.svg?style=shield)](https://circleci.com/gh/prashjha/PeriDEM) [![codecov](https://codecov.io/gh/prashjha/PeriDEM/branch/main/graph/badge.svg?token=JyVHXtXJWS)](https://codecov.io/gh/prashjha/PeriDEM) [![GitHub release](https://img.shields.io/github/release/prashjha/PeriDEM.svg)](https://GitHub.com/prashjha/PeriDEM/releases/) [![GitHub license](https://img.shields.io/github/license/prashjha/PeriDEM.svg)](https://github.com/prashjha/PeriDEM/blob/main/LICENSE) [![GitHub issues](https://img.shields.io/github/issues/prashjha/PeriDEM.svg)](https://github.com/prashjha/PeriDEM/issues) [![Join the chat at https://gitter.im/PeriDEM/community](https://badges.gitter.im/PeriDEM/community.svg)](https://gitter.im/PeriDEM/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [![GitHub repo size](https://img.shields.io/github/repo-size/prashjha/PeriDEM.svg)](https://GitHub.com/prashjha/PeriDEM/) [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.13888588.svg)](https://zenodo.org/records/13888588)
[![Codacy Badge](https://api.codacy.com/project/badge/Grade/eba90e085ba048cb8f895010b8f13b03)](https://app.codacy.com/gh/prashjha/PeriDEM?utm_source=github.com&utm_medium=referral&utm_content=prashjha/PeriDEM&utm_campaign=Badge_Grade_Settings) [![CircleCI](https://circleci.com/gh/prashjha/PeriDEM.svg?style=shield)](https://circleci.com/gh/prashjha/PeriDEM) [![codecov](https://codecov.io/gh/prashjha/PeriDEM/branch/main/graph/badge.svg?token=JyVHXtXJWS)](https://codecov.io/gh/prashjha/PeriDEM) [![GitHub release](https://img.shields.io/github/release/prashjha/PeriDEM.svg)](https://GitHub.com/prashjha/PeriDEM/releases/) [![GitHub license](https://img.shields.io/github/license/prashjha/PeriDEM.svg)](https://github.com/prashjha/PeriDEM/blob/main/LICENSE) [![GitHub issues](https://img.shields.io/github/issues/prashjha/PeriDEM.svg)](https://github.com/prashjha/PeriDEM/issues) [![Join the chat at https://gitter.im/PeriDEM/community](https://badges.gitter.im/PeriDEM/community.svg)](https://gitter.im/PeriDEM/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [![GitHub repo size](https://img.shields.io/github/repo-size/prashjha/PeriDEM.svg)](https://GitHub.com/prashjha/PeriDEM/) [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.13888588.svg)](https://zenodo.org/records/13888588) [![DOI](https://joss.theoj.org/papers/10.21105/joss.07525/status.svg)](https://doi.org/10.21105/joss.07525)


<p align="center"> <img src="./assets/logo/logo.png" width="400"> </p>
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## Introduction

Implementation of the high-fidelity model of granular media that combines the advantages
of peridynamics and discrete element method (DEM).
of peridynamics and the discrete element method (DEM).
The model has the following advantages over existing mechanical models for granular media:
- handle intra-particle deformation and breakage/damage
- handle arbitrary shape of the particle. Inter-particle contact is not specific to any shape of the particle
- handle the arbitrary shape of the particle. Inter-particle contact is not specific to any shape of the particle
- tunable inter-particle contact parameters
- easy to add different mechanical constitutive laws within peridynamics for individual particle deformation

For more details about the model and results, we refer to the paper:

> Prashant K. Jha, Prathamesh S. Desai, Debdeep Bhattacharya, Robert P Lipton (2020).
> **Peridynamics-based discrete element method (PeriDEM) model of granular systems involving breakage of arbitrarily shaped particles**.
> *Journal of the Mechanics and Physics of Solids, 151*, p.104376. Doi https://doi.org/10.1016/j.jmps.2021.104376.

Download pdf [here](https://prashjha.github.io/publication/jha-2020-peridem/jha-2020-peridem.pdf).
> *Journal of the Mechanics and Physics of Solids*, 151, p.104376. Doi https://doi.org/10.1016/j.jmps.2021.104376.
> Download pdf [here](https://prashjha.github.io/publication/jha-2020-peridem/jha-2020-peridem.pdf).

**PeriDEM is published as a software article in the Journal of Open Source Software:**
> Prashant K. Jha (2025).
> **PeriDEM -- High-fidelity modeling of granular media consisting of deformable complex-shaped particles**
> *Journal of Open Source Software*, vol. 10, 116, p.7525, DOI 10.21105/joss.07525.
> Download pdf [here](https://doi.org/10.21105/joss.07525).

We have created channels on various platforms:
- [PeriDEM on Gitter](https://gitter.im/PeriDEM/community?utm_source=share-link&utm_medium=link&utm_campaign=share-link)
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