Modular patterns in hygroscopic 4D printing design – Form and programming of the material
Bibliographic record
Abstract
4D Printing (4DP) can be used to create bio-inspired, hygro-responsive actuators using Wood Polymer Composites (WPCs). The research emphasises the role of precise control of kinematics through material programming and printing parameters to achieve dynamic shape-change mechanisms in response to environmental factors. In 4DP, the geometric configurations of printed objects depend not only on the materials but also on their combination, time, and environmental stimuli, leading to the concept of material architecture: in the context of 4DP, the relationship between form and matter is, therefore, redefined. In this paper, the relationship between the responsive WPCs 4DP actuators with their material architecture and their hygroscopic deformations is discussed, highlighting the role of the modular patterns in the definition of the reaction to the stimulus and the final configuration of the object. Article info Received: 17/09/2023; Revised: 13/10/2023; Accepted: 22/10/2023
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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 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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".