Failure behavior of concrete subjected to high dynamic loading of new spiral projectile | Zendy

Jun Wu | Zendy; Ning Jianguo | Zendy; Tianbao Ma | Zendy

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Failure behavior of concrete subjected to high dynamic loading of new spiral projectile

Author(s) -

Jun Wu,

Ning Jianguo,

Tianbao Ma

Publication year - 2018

Publication title -

defence science journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.198

H-Index - 32

eISSN - 0976-464X

pISSN - 0011-748X

DOI - 10.14429/dsj.68.11349

Subject(s) - projectile , spiral (railway) , warhead , groove (engineering) , rotation (mathematics) , materials science , residual , rotational speed , mechanics , structural engineering , angular velocity , oblique case , engineering , geometry , physics , classical mechanics , mechanical engineering , mathematics , aerospace engineering , linguistics , philosophy , algorithm , metallurgy

A new spiral warhead structure which makes concrete failure by self-rotation is proposed in this paper. Concrete dynamic response when subjected to the oval and new proposed spiral projectile vertical and oblique-angle (from 60° to 70°) impacts of different velocities is studied numerically. This investigation obtains the specific law between different residual velocity and rotation angle when concrete target subjected to the impact loading of spiral projectile ranging from 700 m/s ~ 1000 m/s. It also shows the law between different residual velocity and the groove depth. The rotational angular velocity vs time curves for different working condition are given.

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