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https://hdl.handle.net/11681/9349| Title: | Effect of nonuniform size on internal stresses in a rapid, simple shear flow of granular materials. Part 1, Two grain sizes |
| Authors: | Engineering Foundation (U.S.) Clarkson University. Department of Civil and Environmental Engineering Shen, Hayley H. |
| Keywords: | Flow Granular flow Granular materials Particles Shear flow Slurries Stress-strain relationship Stress Strain |
| Publisher: | Cold Regions Research and Engineering Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Series/Report no.: | CRREL report ; 85-2. |
| Description: | CRREL Report 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. An analytical model is developed here 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. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/9349 |
| Appears in Collections: | CRREL Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| CR-85-2.pdf | 1.12 MB | Adobe PDF |  View/Open |