Rheology of wood plastics melt, part 3: Nonlinear nature of the flow
Bibliographic record
Abstract
Abstract The nonlinear rheology of HDPE/maple melt in both shear and extensional flow was studied using a rotational parallel plate rheometer and the hyperbolic die technique, respectively. Nonlinear features were found in oscillatory shear tests at strain levels far below the values for neat polymer melt. The shear stress relaxation tests revealed the time–strain factorizability, and the damping function was found to follow the sigmoidal‐type relation. The nonlinear nature of the shear flow was further observed as the shear stress growth function from step rate tests as compared to the prediction based on linear viscoelasticity. Extensional stress growth functions of the filled HDPE was build through the viscosity data based on hyperbolic dies with different Hencky strain. The comparison with prediction based on linear viscoelasticity and the Trouton's law further indicated significant damping owing to the particulate suspension nature of the wood plastics melts. POLYM. ENG. SCI., 46:114–121, 2006. © 2005 Society of Plastics Engineers
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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) | 0.002 | 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 source (direct Gemma or distilled Codex), 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".