Numerical modelling of desiccation cracking in a restrained ring test
Bibliographic record
Abstract
Tensile cracking due to desiccation and fracture properties are of great importance in clay liners, earth dam engineering, waste contaminant systems, and mine tailings. This paper presents restrained shrinkage test results and analyses of consolidated desiccating soil, and compares results with numerical analyses using the computer program Universal Distinct Element Code (UDEC). The cohesive crack method was used as it is more appropriate than linear elastic fracture mechanics for soil cracking at high moisture contents with the likely presence of plasticity during fracture. The variation of the radial stresses on the inner ring with water content was used to model mode I cracking and gather fracture properties of the propagating crack. The model was validated on kaolin clay tested under restrained ring shrinkage and was compared with various test results and results from the literature. The test could be a valuable tool in determining fracture properties during desiccation.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".