The Numerical Simulation of Metal Foam / Metal Tube Plastic Deformation Energy Absorber for Reduction in Overload of Projectile-borne Equipment

doi:10.3969/j.issn.1000-1093.2013.08.019

Abstract

Abstract:

A metal foam / metal tube plastic deformation energy absorber is designed to reduce the high overload of projectile-borne equipment when a projectile penetrates into a target at high velocity. And the efficiency of the energy absorber to reduce the overload is studied by using finite element software LS-DYNA. The overload-time curves of projectile-borne equipment are obtained during penetrating process,and compared with the curves obtained without any measures and with metal tube plastic deformation energy absorber. The results show that the metal foam/ metal tube energy absorber can drastically reduce the overload of projectile-borne equipment at high velocity, especially, the efficiency of overload reduction and the working time is better than simple metal tube energy absorber.

Key words: ordnance science and technology, metal foam/ metal tube, plastic deformation energy absorber, projectile-borne equipment, high overload

CLC Number:

TJ410. 33

LIANG Zeng-you, GAO Wei, CHEN Zhi-gang. The Numerical Simulation of Metal Foam / Metal Tube Plastic Deformation Energy Absorber for Reduction in Overload of Projectile-borne Equipment[J]. Acta Armamentarii, 2013, 34(8): 1041-1045.

References

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