Mechanisms of notch insensitivity in long-fiber discontinuous, prepreg platelet compression molded composites
Bibliographic record
Abstract
The present treatise offers an investigation into the operative mechanisms of stress redistribution and notch insensitivity of the prepreg-based, long-fiber discontinuous composites with stochastic fiber orientation state manufactured via a compression molding process. Open-hole tensile behavior is examined to determine the source of notch insensitivity. Both experimental and simulation approaches reveal that local damage mechanisms result in stress redistribution and corresponding reduction in notch sensitivity as measured by the ratio of the notched to un-notched tensile strengths . The analysis showed that open-hole coupon fracture may occur in locations at or away from the hole, depending on the details of the stochastic meso -morphology and the notch size . It was also demonstrated that as the notch diameter is increased, the probability of fracture at the notch is increased. The experimentally observed notch insensitivity of the prepreg platelet composite was reproduced in the numerical simulations.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| 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".