Acoustical methods for the investigation of adhesively bonded structures: A review
Why this work is in the frame
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Bibliographic record
Abstract
Acoustical methods have been widely used for almost 30 years for flaw detection, visualization, and local parameter measurement of different materials. Acoustical techniques are irreplaceable tools for nondestructive evaluation of adhesive-bonded composites and components for the electronics, aeronautics, and automotive industries in the high-technology sector. In the last decade, much progress has been made in the development and improvement of acoustical methods for the investigation of adhesively-bonded structures. These methods allow us to detect voids, delaminations, porosities, cracks, and poor adhesion. In this paper, the most common techniques, such as normal and oblique ultrasonic scans, resonant ultrasonic spectroscopy, and Lamb-wave methods are reviewed. Analysis of the typical defects that can occur in adhesive joints and their causes are presented. The progress of the study of the adhesion mechanism and the role of the interfacial properties and surface conditions in the adhesion process is surveyed. PACS No.: 81.70.Cv
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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 | 0.000 | 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