Low-velocity impact response characterization of a hybrid titanium composite laminate

被引:39
作者
Bernhardt, S. [1 ]
Ramulu, M. [1 ]
Kobayashi, A. S. [1 ]
机构
[1] Univ Washington, Dept Mech Engn, Seattle, WA 98195 USA
来源
JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME | 2007年 / 129卷 / 02期
关键词
D O I
10.1115/1.2400272
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The low-velocity impact response of a hybrid titanium composite laminate, known as TiGr, was compared to that of graphite/epoxy composite. The TiGr material comprised of two outer plies of titanium foil surrounding a composite core. The composite core was PIXA-M (a high temperature thermoplastic) reinforced by IM-6 graphite fibers and consolidated by an induction heating process. The impact response of TiGr was characterized by two modes of failure which differed by failure or nonfailure in tension of the bottom titanium ply The ductility of titanium caused buckling by yielding whereas the brittle adjacent composite ply lead to fracture. The maximum failure force of the material correlated well with the previously reported static flexural data, and the material outperformed the commonly used graphite/epoxy.
引用
收藏
页码:220 / 226
页数:7
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