Thermoelastic fracture analysis of porous metal foams under cold shock using the dual-phase-lag model
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Bibliographic record
Abstract
Some experimental evidence has proved that the Fourier heat conduction theory cannot precisely describe the transient thermal transport in porous media. This article employs the more generalized non-Fourier dual-phase-lag theory to investigate the thermoelastic and fracture responses of a porous copper foam plate containing an edge crack when the material is quenched by a cold thermal shock. The Laplace transform methodology and the numerical inversion scheme are adopted to deal with the equation’s time dependency. Parametric investigations are performed to reveal the impacts of the non-Fourier thermal lags, copper foam’s relative density, and the crack length, which would be beneficial to the thorough understanding and the development of the porous metal foams in thermal environments.
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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 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
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Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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