Bibliographic record
Abstract
A finite element model for the analysis of sandwich plates with laminated composites facesheets is developed. In the model, the facesheets are represented as Reissner-Mindlin plates and the core is modeled as a three-dimensional continuum in which the through-thickness representation of the displacement fields is of a mixed form. That is, the u and v deflections are cubic functions of z, whereas w is a quadratic function of z. This representation allows accurate modeling of a wide range of core types (honeycomb and foam) and in particular core materials that have low in-plane stiffness compared to the transverse stiffness. Also, these through-thickness trial functions allow an accurate representation of transverse shear and normal stresses. The presented model provides a powerful general tool for the analysis of sandwich plates; transverse normal and shear stresses can be determined explicitly at the core/facesheet interface. Also, because of the core model adopted, good accuracy is obtained when large differences in transverse vs in-plane core stiffness is present, as well as for cases in which the core stiffness changes rapidly in the plane of the plate. The capability of the model is illustrated with several examples.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".