Dynamic Behavior of Fused Filament Fabricated Continuous Ramie Fiber‐Reinforced Polypropylene Composites under Diverse Loading Conditions
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The combination of continuous natural fibers and polypropylene enables the fabrication of environmentally friendly composites with recyclability, light weight, and high strength. Additionally, fused filament fabrication (FFF) 3D printing offers reliable process for efficient customized manufacturing of fiber‐reinforced composites. Therefore, this study fabricates continuous ramie fiber‐reinforced polypropylene (CRFRPP) composites through the FFF technique. Considering that composites are sensitive to various external conditions such as temperature, loading direction, and loading rate, this work investigates the mechanical behaviors of CRFRPP under a wide range of temperatures and strain rates when loaded parallel and perpendicular to the fiber orientation. The results indicate that the compressive strength of 3D‐printed CRFRPP under loading in the parallel fiber direction is higher than that in the perpendicular one. The maximum compressive strength is observed to be 176 MPa at a temperature of −40 °C and a strain rate of 2600 s −1 , when loaded in the parallel fiber direction. Under dynamic loading, CRFRPP presents brittle behavior at lower temperatures (−40 and −10 °C) and softening behavior after yielding at higher temperatures (20 and 50 °C). Moreover, the CRFRPP exhibits different failure mechanisms that varied considerably depending on the imposed test conditions.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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