Fatigue Testing and Finite Element Analysis of Bridge Welds Retrofitted by Ultrasonic Impact Treatment
Why this work is in the frame
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Bibliographic record
Abstract
Ultrasonic impact treatment (UIT) offers a promising means for addressing detected or anticipated fatigue problems in steel highway bridges. Although the beneficial effects of UIT are well documented, a number of issues have slowed its adoption by authorities responsible for highway bridge maintenance. Among the more important of these is the need for simple, quantitative ways to independently verify the quality of the treatment after it is applied. This paper presents the latest results of a research project currently underway with the primary goal of addressing this issue. The scope of this project includes: 1) fatigue tests on welds treated by UIT, 2) experimentation with possible quality control (QC) procedures, and 3) finite element (FE) analysis and fracture mechanics studies conducted with the goal of relating the fatigue test and QC results. This paper discusses the latest fatigue test and FE analysis results, focusing on how characteristics of the treated weld toe, such as the radius or notch depth, can be measured and related to fatigue performance.
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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)
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