Study on the shock-produced deformation of a thin-walled metal tube subjected to a magnetic load caused by FCG in the initial stage

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Journal of Vibration and Shock ›› 2012, Vol. 31 ›› Issue (14) : 7-10.

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Study on the shock-produced deformation of a thin-walled metal tube subjected to a magnetic load caused by FCG in the initial stage

XIA Ming 1,2 ，HUANG Zheng-xiang 1 ，GU Xiao-hui 1，ZHANG Xian-feng 1

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Abstract

Abstract: By analyzing the process of the shock-produced deformation of a thin-walled metal tube subjected to a magnetic load caused by FCG (Flux Compression Generator) in initial stage, which is decoupled with three phases: high current production, magnetic field formation and shock loading, a theoretical model is established. Meanwhile, on the basis of the theoretical model, associated simulation methods are applied to study the deformation characteristics with the software MAXWELL and AUTODYN, and experimental verification is done finally. The results show that the theoretical, simulation and experimental results coincide well, the deformation tendencies of the thin-walled metal tube caused by a pulsed magnetic dynamic load and an exploding load are similar, and the distribution also with the first peak time history of the pulsed magnetic dynamic load directly affect the final deformation of the metal tube.

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magnetic load caused by FCG / the initial stage / thin-walled metal tube / shock-produced deformation

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XIA Ming;;HUANG Zheng-xiang ;GU Xiao-hui;ZHANG Xian-feng . Study on the shock-produced deformation of a thin-walled metal tube subjected to a magnetic load caused by FCG in the initial stage[J]. Journal of Vibration and Shock, 2012, 31(14): 7-10