BUCKLING ANALYSIS OF COMPOSITE LONG CYLINDERS USING PROBABILISTIC FINITE ELEMENT METHOD
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Bibliographic record
Abstract
The buckling behaviours of filament-wound carbon fibre-epoxy composite long cylinders subjected to ex-ternal hydrostatic pressure are researched by using deterministic and probabilistic finite element analyses. The critical buckling pressures predicted by deterministic finite element analysis and Monte Carlo simulation and response surface method of ANSYS probabilistic design system are compared with the experimental results. The effects of uncertainties of material properties and physical dimensions on the critical buckling pressure are also researched. The results show that the deterministic and probabilistic finite element analyses predict the similar critical buckling pressures, which are a little higher than the experimental results. The probability of buckling predicted by using response surface method is correct according to the experi-mental buckling pressure. The thickness of composite layers, transversal modulus, inside radius and longitudinal modulus have significant effects on the performance of composite long cylinders, whereas shear modulus, Poisson's ratio, winding angle of outer layers, winding angle of inner layers and unsupported length have small influences.http://dx.doi.org/10.5755/j01.mech.17.5.721
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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.
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