Mechanical characterisation of a periodic auxetic structure produced by SEBM

Schwerdtfeger J, Schury F, Stingl M, Wein F, Singer R, Körner C (2012)

Publication Status: Published

Publication Type: Journal article

Publication year: 2012

Journal

physica status solidi (b) Wiley

Publisher: Wiley-VCH Verlag

Book Volume: 249

Pages Range: 1347-1352

Journal Issue: 7

DOI: 10.1002/pssb.201084211

Abstract

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.

Authors with CRIS profile

Jan Schwerdtfeger Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle) Michael Stingl Lehrstuhl für Angewandte Mathematik (Kontinuierliche Optimierung) Fabian Wein Lehrstuhl für Angewandte Mathematik Robert Singer Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle) Carolin Körner Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials

Related research project(s)

Activity Cellular mechanical metamaterials Jan. 1, 2005 - Jan. 1, 2008

How to cite

APA:

Schwerdtfeger, J., Schury, F., Stingl, M., Wein, F., Singer, R., & Körner, C. (2012). Mechanical characterisation of a periodic auxetic structure produced by SEBM. physica status solidi (b), 249(7), 1347-1352. https://dx.doi.org/10.1002/pssb.201084211

MLA:

Schwerdtfeger, Jan, et al. "Mechanical characterisation of a periodic auxetic structure produced by SEBM." physica status solidi (b) 249.7 (2012): 1347-1352.

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