Characteristics study of thin-walled circular copper tubes for impact transformation

被引：1
|
作者：
Mo, Zonglai [1 ]
Guo, Zhuoyu [1 ]
Song, Shihao [2 ]
Lin, Jiahui [1 ]
Li, Jun [1 ]
机构：
[1] Nanjing Univ Sci & Technol, Sch Mech Engn, Nanjing 210094, Peoples R China
[2] Qingdao Yizhong Technol Ltd Co, Qingdao 266011, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2022年 / 36卷 / 09N11期
关键词：
Thin-walled circular tube; buffer; equivalent system; axial impact;
D O I：
10.1142/S0217979222400185
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An axial bulking mode of the thin-walled tube is proposed and investigated experimentally, for the purpose of transforming a pulse impact into a controllable impact. Two types of thin-walled circular copper tubes with different structures are designed based on the basic circular tubes (BCTs), namely, the uniform grooved tube (UGT) and the circumferential opening grooved tube (CGT). Then, the impact characteristics of a series of copper tubes are investigated experimentally. Results show that BCTs are compressed into two-fold forms during impact, where compression deformation occurs at the thin-walled section and a fold is formed at each thin-walled section. BGTs, UGTs, and CGTs show different performances in terms of transforming impact, and impact output via CGT can be controlled by modifying its structural parameters.
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页数：7
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