Mechanical Properties of Density Graded Foams: Tensile Properties
Why this work is in the frame
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Bibliographic record
Abstract
This work presents the production and characterization of functionally graded polymer foams produced by compression molding. For the conditions tested (temperature gradient, molding time, type and concentration of Expancel microbeads), it was possible to reach density reduction between 2 and 45% for symmetric and asymmetric polyethylene foams. Tensile properties (modulus and stress at 1% deformation) were then measured to relate with their respective density profiles. From the experimental data obtained, a simple finite element analysis was performed to determine the tensile properties of asymmetric foams. The results show that excellent predictions were obtained with a maximum deviation of 7% for all the conditions tested.
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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