Failure analysis of a dielectric elastomer plate actuator considering boundary constraints
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Bibliographic record
Abstract
Dielectric elastomer actuators, a promising transducer technology, have received much attention due to their high efficiency and large deformation. However, in addition to electrical breakdown, dielectric elastomer actuators may also be easily affected by electromechanical instability. These failure modes inhibit the full potential actuation of dielectric elastomers. This study examines the parametric range for which electromechanical instability can be avoided for a dielectric elastomer plate actuator while achieving large actuation. It is found that the electromechanical instability can altogether be eliminated by boundary constraints. With control of the boundary conditions, consideration should also be given to the possible mechanical buckling failure that may occur. Simulation results based on Gent constitutive model are presented to show how these failure modes can be controlled and to what extent the performance of the dielectric elastomer actuator can be improved. This work should provide a better understanding on how to achieve the desired actuation performance of dielectric elastomers, thus leading to a better and controlled design for the applications of these smart materials in transduction technologies.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 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 it