compas-cra
Coupled Rigid-Block Analysis: Stability-Aware Design of Complex Discrete-Element Assemblies
Science Score: 85.0%
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✓CITATION.cff file
Found CITATION.cff file -
✓codemeta.json file
Found codemeta.json file -
✓.zenodo.json file
Found .zenodo.json file -
✓DOI references
Found 12 DOI reference(s) in README -
✓Academic publication links
Links to: zenodo.org -
✓Committers with academic emails
1 of 3 committers (33.3%) from academic institutions -
✓Institutional organization owner
Organization blockresearchgroup has institutional domain (block.arch.ethz.ch) -
○JOSS paper metadata
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○Scientific vocabulary similarity
Low similarity (15.1%) to scientific vocabulary
Keywords
Repository
Coupled Rigid-Block Analysis: Stability-Aware Design of Complex Discrete-Element Assemblies
Basic Info
- Host: GitHub
- Owner: BlockResearchGroup
- License: mit
- Language: Python
- Default Branch: main
- Homepage: https://blockresearchgroup.github.io/compas_cra
- Size: 90.1 MB
Statistics
- Stars: 21
- Watchers: 5
- Forks: 7
- Open Issues: 3
- Releases: 6
Topics
Metadata Files
README.md
COMPAS CRA
Coupled Rigid-Block Analysis (CRA) implementation using COMPAS framework.
developed with ♥ by Gene Ting-Chun Kao
To find out more about CRA, please refer to our paper in the CAD Computer-Aided Design journal: https://doi.org/10.1016/j.cad.2022.103216
Coupled Rigid-Block Analysis: Stability-Aware Design of Complex Discrete-Element Assemblies

Abstract
The rigid-block equilibrium (RBE) method uses a penalty formulation to measure structural infeasibility or to guide the design of stable discrete-element assemblies from unstable geometry. However, RBE is a purely force-based formulation, and it incorrectly describes stability when complex interface geometries are involved. To overcome this issue, this paper introduces the coupled rigid-block analysis (CRA) method, a more robust approach building upon RBE’s strengths. The CRA method combines equilibrium and kinematics in a penalty formulation in a nonlinear programming problem. An extensive benchmark campaign is used to show how CRA enables accurate modelling of complex three-dimensional discrete-element assemblies formed by rigid blocks. In addition, an interactive stability-aware design process to guide user design towards structurally-sound assemblies is proposed. Finally, the potential of our method for real-world problems are demonstrated by designing complex and scaffolding-free physical models.
Please cite our work if you use CRA in your research
Paper
latex
@article{kao2022coupled,
title = {Coupled Rigid-Block Analysis: Stability-Aware Design of Complex Discrete-Element Assemblies},
author = {Kao, Gene Ting-Chun and Iannuzzo, Antonino and Thomaszewski, Bernhard and Coros, Stelian and Van Mele, Tom and Block, Philippe},
journal = {Computer-Aided Design},
volume = {146},
pages = {103216},
year = {2022},
publisher = {Elsevier},
doi = {10.1016/j.cad.2022.103216},
url = {https://doi.org/10.1016/j.cad.2022.103216}
}
Software implementation
latex
@misc{compas-cra,
title = {{COMPAS CRA}: Coupled Rigid-Block Analysis ({CRA}) for the {COMPAS} framework},
author = {Kao, Gene Ting-Chun},
note = {https://github.com/BlockResearchGroup/compas\_cra},
year = {2020-2022},
doi = {10.5281/zenodo.7043135},
url = {https://doi.org/10.5281/zenodo.7043135},
}
Read the docs
https://blockresearchgroup.github.io/compas_cra
Examples to reproduce our paper results
See examples in docs or try them in docs/examples.
Owner
- Name: Block Research Group
- Login: BlockResearchGroup
- Kind: organization
- Location: Zurich
- Website: http://block.arch.ethz.ch
- Repositories: 25
- Profile: https://github.com/BlockResearchGroup
Citation (CITATION.cff)
cff-version: 1.1.0
message: "If you use this software, please cite it as below."
authors:
- family-names: "Kao"
given-names: "Gene Ting-Chun"
orcid: https://orcid.org/0000-0002-4275-1246
title: "BlockResearchGroup/compas_cra: Release v0.2.0"
version: v0.2.0
doi: 10.5281/zenodo.7043136
date-released: 2022-09-02
url: "https://github.com/blockresearchgroup/compas_cra"
GitHub Events
Total
- Create event: 1
- Release event: 1
- Issues event: 2
- Watch event: 1
- Issue comment event: 9
- Push event: 20
- Pull request review event: 1
- Pull request review comment event: 1
- Pull request event: 2
- Fork event: 3
Last Year
- Create event: 1
- Release event: 1
- Issues event: 2
- Watch event: 1
- Issue comment event: 9
- Push event: 20
- Pull request review event: 1
- Pull request review comment event: 1
- Pull request event: 2
- Fork event: 3
Committers
Last synced: almost 3 years ago
All Time
- Total Commits: 130
- Total Committers: 3
- Avg Commits per committer: 43.333
- Development Distribution Score (DDS): 0.138
Top Committers
| Name | Commits | |
|---|---|---|
| GeneKao | k****e@g****m | 112 |
| Tom Van Mele | b****g@a****h | 11 |
| brgcode | t****e@g****m | 7 |
Committer Domains (Top 20 + Academic)
Issues and Pull Requests
Last synced: 6 months ago
All Time
- Total issues: 5
- Total pull requests: 3
- Average time to close issues: 13 days
- Average time to close pull requests: 1 day
- Total issue authors: 3
- Total pull request authors: 3
- Average comments per issue: 2.4
- Average comments per pull request: 3.0
- Merged pull requests: 2
- Bot issues: 0
- Bot pull requests: 0
Past Year
- Issues: 2
- Pull requests: 3
- Average time to close issues: N/A
- Average time to close pull requests: 1 day
- Issue authors: 1
- Pull request authors: 3
- Average comments per issue: 0.0
- Average comments per pull request: 3.0
- Merged pull requests: 2
- Bot issues: 0
- Bot pull requests: 0
Top Authors
Issue Authors
- daariioo (2)
- tomvanmele (2)
- Pirouz-Nourian (1)
Pull Request Authors
- andrusha (2)
- korbireischl (2)
- petrasvestartas (2)
Top Labels
Issue Labels
Pull Request Labels
Packages
- Total packages: 1
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Total downloads:
- pypi 143 last-month
- Total dependent packages: 0
- Total dependent repositories: 0
- Total versions: 6
- Total maintainers: 3
pypi.org: compas-cra
- Homepage: https://blockresearchgroup.github.io/compas_cra
- Documentation: https://blockresearchgroup.github.io/compas_cra
- License: MIT License Copyright (c) 2020 - 2022 ETH Zurich, Block Research Group, Gene Ting-Chun Kao Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Latest release: 0.4.0
published almost 2 years ago
Rankings
Maintainers (3)
Dependencies
- attrs >=17.4 development
- autopep8 * development
- black * development
- bump2version >=1.0.1 development
- check-manifest >=0.36 development
- doc8 * development
- flake8 * development
- graphviz * development
- invoke >=0.14 development
- ipykernel * development
- ipython >=5.8 development
- isort * development
- m2r2 * development
- matplotlib * development
- nbsphinx * development
- pydocstyle * development
- pytest <7.1 development
- sphinx ==4.5 development
- sphinx_compas_theme >=0.15.13 development
- twine * development
- wheel * development
- compas ==1.16.0
- compas_assembly ==0.4.3
- pyomo ==6.4.2
- actions/checkout v2 composite
- compas-dev/compas-actions.build v1.1.1 composite
- conda-incubator/setup-miniconda v2.0.0 composite
- actions/checkout v2 composite
- compas-dev/compas-actions.docs v1.4.1 composite
- compas-dev/compas-actions.docversions v1.3.0 composite
- crazy-max/ghaction-github-pages v2 composite
- Zomzog/changelog-checker v1.2.0 composite
- actions/checkout v1 composite
- actions/checkout v2 composite
- actions/create-release v1 composite
- actions/setup-python v2 composite
- compas-dev/compas-actions.publish v1.0.0 composite