Effect of Weld Lines on Injection Moulded Fibreglass Reinforced Structural Foams. 2 - Impact and Flexural Properties
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Bibliographic record
Abstract
In the second part of this investigation, the effects of weld lines on impact strength and flexural properties of injection moulded glass fibre reinforced structural polypropylene foams are reported. The results show that Charpy impact strength decreases with density and presence of a weld line. For three-point bending tests, a linear decrease of the flexural modulus and flexural strength as density decreases was found, the latter being more important. There is also a significant decrease of flexural properties for samples with a weld line compared to samples without one of the same density. Also, to evaluate the weakness of the weld line region, off-centre flexural tests were performed to determine the minimum distance at which load should be applied for the failure to no longer occur at the weld line. The results obtained indicate that this distance decreases as density decreases.
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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