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https://hdl.handle.net/11681/5388| Title: | Constitutive model for a thawing, frost-susceptible sand |
| Authors: | Shoop, Sally A. (Sally Annette) Affleck, Rosa T. Janoo, Vincent C. Haehnel, Robert B. Barrett, Benjamin. |
| Publisher: | Cold Regions Research and Engineering Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Series/Report no.: | ERDC/CRREL ; TR-05-3. |
| Abstract: | A material model for soft, wet soil was generated to simulate the deformation behavior of thawing soil under vehicle loading on paved and unpaved roads. Freeze–thaw action produces a loose, wet soil that undergoes large deformation when subjected to vehicle loads. The soil modeled is a frost-susceptible fine sand, which was used in full-scale tests of paved and unpaved road sections in CRREL’s Frost Effects Research Facility (FERF). The soil was subjected to a full suite of saturated and unsaturated triaxial testing, using density, moisture, and loading conditions duplicating those experienced during the freeze–thaw testing in the FERF. Material parameters were generated for a capped Drucker–Prager plasticity model. These were calibrated in triaxial test simulations using the commercial finite element code ABAQUS. The material model was then implemented in several three-dimensional finite element simulations for validation and robustness. The model for Lebanon Sand was compared to the same model for other granular materials. |
| Description: | Technical Report |
| URI: | http://hdl.handle.net/11681/5388 |
| Appears in Collections: | Technical Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| CRREL-TR-05-3.pdf | 2.12 MB | Adobe PDF |  View/Open |