Compression moulding of complex parts using randomly-oriented strands thermoplastic composites
Why this work is in the frame
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Bibliographic record
Abstract
Randomly-oriented strands composites offer the possibility to mould complex parts with fast processing cycle. In this paper, effects of pressure and strand size on the quality of a T-shape part were studied experimentally. Low pressure results showed strand size effects on the filling of a 25 mm rib cavity. Filling pressures for three strand sizes were obtained. 10 bar of pressure was enough to fully consolidate parts with smaller strands (3.17 mm × 6.35 mm). Analyzing parts processed at minimal filling pressure showed a void content in the rib feature no greater than 1.2 %. Processing at higher pressure reduced void content between 0.22 % and 0.44 %. Mechanical testing (ASTM D2344) showed similar strength for ribs processed at filling pressure and high pressure. This same trend was obtained for component testing of the T-shape. The main findings show that processing a complex feature at filling pressure Pfill was sufficient to reach nominal mechanical properties. This suggested that porosity was not detrimental to the mechanical performance for the given tests.
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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 | 0.000 | 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 it