Fatigue assessment of welded joints and crack growth considering residual stress
Why this work is in the frame
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Bibliographic record
Abstract
Abstract There are different approaches to investigate the fatigue life of welded joints, however, less has been done considering residual stresses. The heat and residual stress distribution of a butt weld joint are determined using ABAQUS software and the results are validated against experimental and numerical studies in the literature. The software FE-SAFE is used to study the fatigue life of a GMAW welded butt joint under high cycle loading considering the residual stress. The corresponding S-N curve is determined, and the results show that the longer the length of welds, the higher residual stress and lower fatigue life. The crack nucleation and propagation in the butt weld simulated using XEFM software, and it is found that crack starts from the position of highest restrain.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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