| Title: |
Data from: Jammed frictional tetrahedra are hyperstatic |
| Authors: |
Neudecker, Max; Ulrich, Stephan; Herminghaus, Stephan; Schröter, Matthias |
| Publication Year: |
2013 |
| Collection: |
Dryad Digital Repository (Duke University) |
| Subject Terms: |
Granular systems; Jamming; Tetrahedra; X-ray Tomography |
| Description: |
We prepare packings of frictional tetrahedra with volume fractions ϕ ranging from 0.469 to 0.622 using three different experimental protocols under isobaric conditions. Analysis via x-ray microtomography reveals that the contact number Z grows with ϕ, but does depend on the preparation protocol. While there exist four different types of contacts in tetrahedra packings, our analysis shows that the edge-to-face contacts contribute about 50% of the total increase in Z. The number of constraints per particle C increases also with ϕ and even the loosest packings are strongly hyperstatic, i.e., mechanically overdetermined with C approximately twice the degrees of freedom each particle possesses. |
| Document Type: |
article in journal/newspaper |
| Language: |
unknown |
| Relation: |
PMID:23889445; Neudecker M, Ulrich S, Herminghaus S, Schröter M (2013) Jammed frictional tetrahedra are hyperstatic. Physical Review Letters 111(2): 028001.; http://hdl.handle.net/10255/dryad.50826 |
| DOI: |
10.5061/dryad.qv331 |
| Availability: |
http://hdl.handle.net/10255/dryad.50826; https://doi.org/10.5061/dryad.qv331 |
| Accession Number: |
edsbas.33A095C2 |
| Database: |
BASE |