Experimental Validation of a Time to Instability Theory for Viscoelastic Rings
Bibliographic record
Abstract
A novel method of estimation of time to instability of viscoelastic structures has been developed by Dr. C. G. Merrett and has been applied to rings.This theory has applications to the nuclear industry as once the stability of viscoelastic rings is understood, the theory can be expanded to predict the stability of viscoelastic helical coils, which are found in the CANDU nuclear reactor as tight fitting spacers.The theory takes the elastic mechanics of a ring with a uniform pressure load, changes this pressure load to a two point load, applies the elastic-viscoelastic correspondence principle, and then uses Drozdov and Kolmanovskii's stability theory to estimate service life.A computer code using this theory plots the service life of a ring versus viscoelasticity and load.The author would like to thank the following people, in no particular order, for their assistance in the completion of this project:• Dr. C. G.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.007 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.008 | 0.002 |
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 source (direct Gemma or distilled Codex), 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".