An experimental study on the repair of a notched beam subjected to dynamic loading with piezoelectric patches
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Bibliographic record
Abstract
An experimental realization of the effective repair of a notched cantilever beam structure subjected to dynamic loading by use of piezoelectric patches is reported. In the experiment, a small piezoelectric patch used as a sensor is placed on the notch position to monitor the severity of the stress concentration around the notch area by measuring the charge output on the sensor, and a patch used as an actuator is located around the notch area to generate a required bending moment by employing an actuation voltage to reduce the stress concentration at the notch position. The actuation voltage on the actuator is designed from a feedback circuit process. An analytical model is first established for the repair process by providing the calculation of the actuation voltage, and then a finite element model (FEM) is conducted to verify the effectiveness of the analytical model. Finally, repair of a notched cantilever beam is realized experimentally. Both the numerical simulations and the experimental studies show that the developed practical structural repair technique for notched beams with piezoelectric patches is effective and efficient.
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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) | 0.000 | 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)
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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