Dynamic failure of Armox 500T steel against high-speed long-rodimpact
Bibliographic record
Abstract
Numerical modeling approaches become effective engineering techniques in the field of structural-scale designs of armor systems under dynamic impact loading and a suitable material model enables to accurately reproduce experiments and investigate impactrelated phenomena (i.e., change of mechanisms).In this study, the Generalized Incremental Stress-State dependent damage MOdel (GISSMO) is applied to explore the dynamic failure and fracture of Armox 500T steel under high-velocity ballistic impact by a longrod projectile in LS-DYNA explicit solver.The Johnson-Cook model is used to describe the behavior of the tungsten heavy alloy projectile and the GISSMO is employed to describe the stress state-and strain rate-fracture behavior of Armox 500T steel target.Here, the GISSMO for Armox 500T is validated and the Johnson-Cook model for tungsten heavy alloy is calibrated against ballistic impact experiments involving depth of penetration measurements on stacked Armox 500T plates.Once validated, the model is used to explore designs of new steel-based armor system configurations for various impact conditions (i.e., impact angle of obliquity, standoff distance, and target span).
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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 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.003 |
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; both teacher heads agree on what is shown here.
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".