Investigating the mechanical behaviour and damage response of flax fibres hybridized with aramids
Bibliographic record
Abstract
Natural fibers are replacing traditional materials in many industrial applications, though, their use is limited due to their high moisture uptake and complex structure. This study aims at characterizing and analyzing the mechanical and damage response of a hybrid Woven Kevlar/Flax/Epoxy composites in a sandwich structure consisting of a 12 ply Flax core and 2-layer Kevlar skin. Three ply orientations for the flax core([0],[0/90],[§45]), were manufactured. To evaluate the mechanical properties of the hybrid composites, tensile, compressive, flexural and torsional loading tests were performed. Fractured regions were analyzed using optical microscopy to evaluate fracture mechanics. Test specimens were subjected to load unload sequences at progressively increasing loads until failure to evaluate damage response. SEM analysis was performed to characterize dominant damage mechanisms. Reported data shows that hybridization offers significant improvements in mechanical performance and noticeable reductions in damage accumulation, thus, can be further implemented into the industry for general engineering applications.
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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) | 0.001 | 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".