Experimental Fatigue Life Quantification of the Effect of Blending Surface Damage on Shot-Peened Aluminum Specimens
Bibliographic record
Abstract
This paper presents the results of an experimental test program aimed at the investigation of the effect on fatigue life of blending surface damage on shot-peened parts. The test program was performed on shot-peened aluminum specimens where a surface damage was introduced on the specimen by machining a notch after the shot-peening operation. This notched area was then blended to a smooth surface before performing a four point bending fatigue test. The results showed little detrimental effect of the blending operation and, in some cases, improvement on the fatigue life of the specimen compared to a baseline shot-peened and undamaged specimen. These results were investigated with fractography, residual stress measurement using X-ray diffraction and a Discrete Element Model (DEM) - Finite Element Model (FEM) to simulate the blending and assess the redistribution of the residual stresses in the specimens.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".