New methodologies for characterization and modelling of filament wounded composite pressure vessels
Bibliographic record
Abstract
This paper describes research activities carried out in the field of Composite Overwrapped Pressure Vessels (COPV), with the goal to develop an accurate modelling methodology for the dome area. Different aspects are considered: material characterization at coupon level for a structure with curvatures, and definition of an adapted so called “soccer-ball mandrel” that presents flat faces; identification of the parameters of a specific material model that can account for progressive damage and permanent deformation; development of a methodology for modeling with FEM coupons extracted from the dome area, in shell and 3D-solid elements formulations; prediction of multi-sequence lay-up thickness coming from the filament winding process, in an axisymmetric representation, accounting for interaction with the boss; FEM simulation of the filament winding process, in order to better understand the behavior of the tapes deposited during filament winding. Good agreements are obtained between modeling/simulations and tests/measurements.
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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 | 0.000 |
| 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 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".