Experimental Investigation on the Ballistic Performance of 45Steel Metal Plates Subjected to Impact by Hemispherical-Nosed Projectiles
Bibliographic record
Abstract
A series of impact tests were conducted to investigate the ballistic performances of single,doubleand three-layered 45steel plates subjected to impact by hemispherical-nosed projectiles which were made from 38CrSi and diameter was 12.7mm,the impact velocities ranged from 240m/s to 600m/s.The multi-layered plates arranged in various combinations of the same total thicknesses were normally impacted with the help of a gas gun.The initial and residual velocities of the projectiles were measured,and also the ballistic limit velocity for each configuration target was obtained and compared based on the investigation of the effect of the number of layers on the ballistic resistance.The results indicated that the ballistic limit velocity of multi-layered plate was higher than that of monolithic plate.The dominant failure model of monolithic plate was shearing,but the dominant failure models of multi-layered plate were global dishing and local bulging.Moreover,the failure models of plates of multi-layered plates were in relation to their order.
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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 | 0.001 |
| 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)
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".