Bibliographic record
Abstract
The ASME B&PV Code, Section III NB-3600 provides a requirement to avoid thermal stress ratcheting under thermal transient conditions. The ratchet check in this code is based on calculating the range of temperature difference between the outside and inside surfaces of the pipe for pairs of load sets. The calculated temperature ranges are then compared with a code equation which is a function of pressure, geometry and material properties. This paper reviews the thermal stress ratchet requirements in ASME Section III Subsection NB with respect to piping analysis. A simplified formula is proposed for thermal stress ratchet check which eliminates the difficulties and ambiguities associate with the formulation provided in the NB-3600 code. The paper also investigates temperature distributions for various components (including flat plate and pipe) by performing heat transfer analysis. The results are compared with the ratchet limit. Using plate solutions to estimate the temperature range of pipe could sometimes give non-conservative results.
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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) | 0.001 | 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".