Influence of material strain hardening on energy absorption of axially loaded steel tubular members via first wrinkling mechanism
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Bibliographic record
Abstract
Experimental investigations have revealed that the crushing response of axially loaded tubular metallic members changes significantly depending on the strain-hardening capacity of the material. In this paper, the post-yield response of axially loaded stainless-steel and mild-steel tubes are examined under quasi-static loading from the perspective of deformation-controlled and force-controlled collapse mechanisms. The rotational instability of the plastic hinges developed along the tubes is traced numerically by considering an isolated plastic hinge model selected at the critical length of the tubes’ shell. The characteristics of the hinges are probed using the moment-rotation diagrams. The stress profiles in the critical region of the tubes at various loading states are investigated. It is observed that the tubes’ stability and energy absorption capacity are significantly dependent on the strain-hardening capacity of the material exploited during the formation of the plastic hinges.
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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) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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