Modeling Rate-Dependent Dissipation in Granular Solids via Continuum Thermodynamics
Abstract
This project has investigated the physical processes controlling energy dissipation in granular media during high-pressure compression and penetration. For this purpose, it has formulated and validated new hypotheses about the interplay between the energy loss through surface area creation in single grains and the energy consumption of packed systems undergoing simultaneous comminution, shear and volume change. Energy scaling hypotheses at both particle and assembly scale have been used to quantify the role of the strain rate on the dissipative capacity of a granular material. Such hypotheses have been tested via experiments conducted at both length scales.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 03, 2017
- Accession Number
- AD1059345
Entities
People
- Giuseppe Buscarnera
Organizations
- Northwestern University