Study on the formation of micro-scale shaped charge jet based on diameter effect
Dexu Li, Zhengxiang Huang, Qiangqiang Xiao, Xin Jia, Yiming Chen · 2026
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Description
Li and co-authors study shaped charges at miniature scale. In these devices an explosion collapses a metal cone into a jet moving fast enough to pierce armour. Classical theory predicts jet speed well at normal sizes but overestimates it for tiny charges, because detonation runs slower when the charge is only millimetres wide. The 2026 team confirmed that slowdown experimentally. They then rewrote the standard velocity calculations for the diameter effect and tested a charge just 10 millimetres across with pulsed X-ray photography.
The X-ray measurement caught the jet tip travelling at a speed the old theory overshot by a wide margin. The corrected model landed close to the measured value, cutting the prediction error by roughly a fifth of the original gap. The gap matters for miniature weapon platforms, where designers trusting the old numbers would expect penetration the device cannot deliver.
Catalog record
| CREATOR | Dexu Li, Zhengxiang Huang, Qiangqiang Xiao, Xin Jia, Yiming Chen |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 41 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |