期刊
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
卷 249, 期 7, 页码 1347-1352出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.201084211
关键词
auxetics; cellular materials; electron beam melting; finite element method; metals
资金
- German Research Council (DFG) at University of Erlangen-Nuremberg
We present a thorough investigation of the mechanical behaviour of a non-stochastic cellular auxetic structure. A combination of experimental and numerical methods is used to gain a deeper understanding of the mechanical behaviour and its dependence on the geometric properties of the cellular structure. The experimental samples are built from Ti-6Al-4V using selective electron beam melting, an additive manufacturing process giving the possibility to vary the geometry of the structure in a highly controlled manner. The use of finite element simulations and mathematical homogenisation allows us also to investigate off-axis properties of the cellular material. This leads to a more comprehensive understanding of the mechanical behaviour of the auxetics. Ultimately, the gained knowledge can be used to tailor auxetic materials to specific applications.
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