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Journal of Composite Materials
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Measurement of Elastic Constants of Nanohoneycomb Structures

Ji Hoon Jeon

Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Korea

Woonbong Hwang

Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Korea, whwang{at}postech.ac.kr

Kun-Hong Lee

Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Korea

Five engineering constants of transversely isotropic nanohoneycomb material are obtained, using one tensile test, two bending tests, and two indentation tests. The advantage is that all these tests can be carried out using only simple beam shape specimens. In all but the tensile test, a desired material constant is to be extracted from mixed materials constants. A disadvantage is that the deviation of the desired material constants are increased by the deviation of other related material constants. This is the first attempt to measure mechanical properties of microscopic specimens of brittle transversely isotropic material. It is intended to lay the foundation for easy and simple measurement of complex material constants of microscopic specimens.

Key Words: nanohoneycomb • AAO (anodic aluminum oxide) • tensile test • bending test • nanoindentation.

Journal of Composite Materials, Vol. 43, No. 10, 1155-1175 (2009)
DOI: 10.1177/0021998308103215
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