Breathing Coefficient for Porous Body Swelling
Published:Dec 29, 2025 08:32
•1 min read
•ArXiv
Analysis
This paper introduces the 'breathing coefficient' as a tool to analyze volume changes in porous materials, specifically focusing on how volume variations are distributed between solid and void spaces. The application to 2D disc packing swelling provides a concrete example and suggests potential methods for minimizing material expansion. The uncertainty analysis adds rigor to the methodology.
Key Takeaways
- •Introduces the 'breathing coefficient' for analyzing volume changes in porous materials.
- •Provides a physical interpretation and uncertainty analysis for the coefficient.
- •Applies the concept to 2D monosized disc packing swelling.
- •Suggests potential methods for minimizing material expansion based on initial granular organization.
Reference
“The analytical model reveals the presence of minimisation points of the breathing coefficient dependent on the initial granular organisation, showing possible ways to minimise the breathing of a granular material.”