Research PaperNo Access

Influencing factors and current threshold conditions of jet forming for liner structures under electromagnetic loading

Yawei Wang

https://orcid.org/0000-0002-8989-8624

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, 100081 Beijing, P. R. China

The 705 Research Institute, China State Shipbuilding Corporation Limited, Xi’an 710077, China

E-mail Address: 3120200247@bit.edu.cn

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Shuyou Wang

https://orcid.org/0000-0002-5258-7822

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, 100081 Beijing, P. R. China

E-mail Address: wangsy@bit.edu.cn

Corresponding author.

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Jianwei Jiang

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, 100081 Beijing, P. R. China

E-mail Address: bitjjw@bit.edu.cn

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Jianbing Men

Tangshan Research Institute, Beijing Institute of Technology, 063000 Tangshan, P. R. China

E-mail Address: menjb@bit.edu.cn

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, and

Guojun Chen

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, P. R. China

E-mail Address: 3120220173@bit.edu.cn

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https://doi.org/10.1142/S0217979224503235Cited by:0 (Source: Crossref)

Abstract

In order to study the forming mechanism of metal jet under electromagnetic loading, numerical simulation for electromagnetic coupled jet forming was realized by using AUTODYN software with secondary development. Through secondary development, the magnetic pressure on the liner during the collapse process is calculated iteratively, which enables numerical simulation for electromagnetically coupled jets. The influence and threshold condition of electromagnetic parameters for jet forming are obtained through this. The results show that the head velocity and length of the jet are improved for liner without a tip. The electromagnetic parameters and structural parameters need to match with each other. The head velocity and effective length of the jet increase with the increase in wall thickness and cone angle. The liner diameter has little effect on the head velocity and effective length of the jet. The head velocity and effective length of the jet first increase and then decrease with the increase in cone radius.

Keywords:

PACS: 75.78.-n

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