# Analysis of Strength Effects on the Dynamic Response of a Shaped-Charge Under Lateral Disturbances
## 5 Conclusions  
We used numerical simulation to simulate the dynamic impact of shaped-charge jets into target plates with different strengths. By introducing the change curve of the offset angle and combining this value with the data on the dynamic impact depth of the jet, the influence of target strength on dynamic impact of the jet could be further analyzed. Based on dimensional analysis, the prediction model of the dynamic impact performance of the jet, taking into account the yield strength of the target plate, was obtained. A dynamic test of a shaped-charge jet using a rocket pulley was carried out, and the effectiveness of the numerical simulation and the prediction model was verified. The main conclusions are as follows:  
1. When the lateral disturbance velocity increases within the range of 100-400 m/s, the jet offset angle increases with the increase of the lateral disturbance velocity across all target yield strengths. At a fixed lateral disturbance velocity, the offset angle is negatively correlated with the yield strength of the target plate;
2. Based on dimensional analysis, considering the influence of lateral disturbance velocity, jet strength and target strength, it is found that there is a strong exponential relationship between the dimensionless variable \(P_{j,dyn}/l\) and the respective influencing variables;
3. A comparison of the numerical simulation, the prediction model and the experimental data under different target velocities, reveals that the relative errors between the established prediction model, numerical simulation and experimental data are all below 15%, showing good consistency. The established engineering model can characterize the influence of target strength.  
Conceptualization, X.Z., C.X. and J.Y. ([PERSON]); methodology, X.Z.; software, X.Z.; validation, X.Z.; formal analysis, X.Z., C.X., [PERSON] ([PERSON]), X.Z., [PERSON] ([PERSON]) and X.L.; investigation, X.Z., C.X., [PERSON] ([PERSON]), [PERSON] ([PERSON]) and X.L.; data curation, X.Z., C.X. and [PERSON]. ([PERSON]); writing--original draft preparation, X.Z.; writing--review and editing, C.X. and J.Y. ([PERSON]); supervision, C.X., [PERSON] ([PERSON]), [PERSON] ([PERSON]) and [PERSON]; project administration, X.Z. All authors have read and agreed to the published version of the manuscript.  
Figure 11: Comparison of the jet dynamic impact results.  
**Funding:** This research was funded by the National Natural Science Foundation of China (Number: 12402441); the China Postdoctoral Science Foundation under Grant (Number 2024M/F60012) and Shanxi Province Basic Research Plan Free Exploration Youth Fund Project (Number: 202203021212136).  
**Institutional Review Board Statement:** Not applicable.  
**Informed Consent Statement:** Not applicable.  
**Data Availability Statement:** The original contributions presented in the study are included in the article, further inquiries can be directed to the corresponding author.  
**Acknowledgments:** The authors would like to thank the editor, associate editor, and the anonymous re-viewers for their helpful comments and suggestions that have improved this paper.  
**Conflicts of Interest:** Author [PERSON] was employed by the company Anhui Dongfeng Mechanical and Electrical Technology Co., Ltd. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.