Research on Rapidly Shaped Charge Cutting Technology of Aircraft Damaged Thin-Wall Structure

• Published in: Проблемы прочности
• Date: 2016
• Main Authors: Cui, A.Y., Hu, F.Y., Wei, H.K., Liu, H.D., Wang, Z., Dong, X.L.
• Format: Article
• Language: English
• Published: Інститут проблем міцності ім. Г.С. Писаренко НАН України 2016
• Subjects: Научно-технический раздел
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/173418
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Research on Rapidly Shaped Charge Cutting Technology of Aircraft Damaged Thin-Wall Structure / A.Y. Cui, F.Y. Hu, H.K. Wei, H.D. Liu, Z. Wang, X.L. Dong // Проблемы прочности. — 2016. — № 1. — С. 69-74. — Бібліогр.: 15 назв. — англ.

Shaped charge cutting technology has been introduced into the field of aircraft structure repair to rapidly reshape irregular holes in thin-walled structures. In the present research, numerical calculation of the dynamic cutting process by ANSYS and experiments of shaped charge cutting on a 2A12 aluminum alloy plate with 2 mm thickness have been carried out. It was found that fast kerf is smooth, producing a neat edge and good linearity. The incision fracture section is arranged in neat rows on a corrugated strip, and the lines are clear. Otherwise, the lower part is slightly messy without obvious distribution rules. The target plate separation method of cumulative cutting is a kind of “pre-penetration” and “late tear” method. The application of shaped charge cutting technology can aid in repair of aircrafts’ thin-walled structural damage.