Fem analysis on the "self-sharpening" behavior of tungsten-fiber/metallic glass matrix composite long rod

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

The geometrical model of tungsten-fiber / metallic glass matrix (WF/MG) composite long rod is established based on the microstructure of composite, and a modified coupled thermomechanical constitutive model is employed to describe the high shear sensitivity of metallic glass (MG) matrix. Then FEM simulations on the penetration of WF/MG composite long rod into steel target are conducted integrated with related penetration tests. Corresponding analysis shows that due to the high shear sensitivity of MG matrix, a significant "selfsharpening" behavior occurs in the composite rod, and the rod nose maintains as a sharp shape during the penetration. Comparatively, for the tungsten heavy alloy (WHA) rod, the nose blunts as a "mushroom" shape due to the relatively high plasticity of material. Correspondingly, the "self-sharpening" property of composite rod leads a much better penetrating performance compared with the WHA one.

源语言英语
主期刊名Terminal Ballistics, Vulnerability and Survivability
编辑R. Daniel Boeka, Richard G. Ames
出版商DEStech Publications Inc.
1019-1029
页数11
ISBN(电子版)9781605951492
出版状态已出版 - 2014
活动28th International Symposium on Ballistics, BALLISTICS 2014 - Atlanta, 美国
期限: 22 9月 201426 9月 2014

出版系列

姓名Proceedings - 28th International Symposium on Ballistics, BALLISTICS 2014
2

会议

会议28th International Symposium on Ballistics, BALLISTICS 2014
国家/地区美国
Atlanta
时期22/09/1426/09/14

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