Reconstructing ice force-displacement development in structural assessments of freshwater, polycrystalline ice impacts
Why this work is in the frame
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Bibliographic record
Abstract
• Reconstructing realistic ice force-displacement development. • Model parameters should result in physically realistic crushing specific energy (CSE). • PA model in ISO 19906 Clause A.8.2.4.7.3 & .3.5 fit CSE ≈ 5.6 kJ/kg for a 10 −2 event. • PA model of IACS for PC1 and PC3 fit CSE of 14 kJ/kg and 3.0 kJ/kg, respectively. Using the ISO19906 local pressure-area relationship p = 7.4 A −0.7 as a process pressure-area curve to validate numerical ice models and reconstruct force-displacement development in damage assessment studies may lead to overestimation of the energy absorption capacity of ice found in nature. This is because the way this relationship is derived is different from how it is used in structural assessments of ice impacts. In the following paragraphs, we explain (with examples) how to reconstruct realistic ice force-displacement relationships in the absence of empirical force histories while focusing on freshwater, polycrystalline ice crushing, within the brittle regime, against a rigid structure.
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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 | 0.001 | 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 | 0.000 |
| 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 it