Effect of Nonuniform Size on Internal Stresses in a Rapid, Simple Shear Flow of Granular Materials. Part 1. Two Grain Sizes,
Abstract
Existing theories that predict the stress-strain rate relationship in a rapidly sheared granular flow can only treat materials that are made of single-size particles. However, granular flows usually involve materials of mixed sizes. It has been observed in many laboratory studies that size distribution has a significant effect on the flow of a granular material. Despite its importance, no quantitative theory has been devised that can explain the effect of size distribution. This report develops an analytical model to quantify the stresses in a mixture of spheres with two different sizes and identical material properties. Binary collisions between adjacent particles are considered as the dominating stress-generating mechanism. Comparisons between the theoretical results and the existing laboratory data show good agreement. Keywords: Granular flow, and Slurries.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1985
- Accession Number
- ADA154045
Entities
People
- Hayley H. Shen
Organizations
- Cold Regions Research and Engineering Laboratory