期刊
COMPOSITE STRUCTURES
卷 234, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2019.111749
关键词
Honeycomb; Effective in-plane elastic property; Finite element method; Geometric nonlinearity
The in-plane elastic behavior of honeycombs under large deformations is analyzed based on the analytical and numerical approaches. The Reissner beam theory is used considering the axial, bending and shearing deformation of the inclined honeycomb wall. The influence of the tensile deformation of the node between the inclined and vertical walls on the effective elastic properties of the honeycombs is also considered. The effective in-plane elastic properties of the honeycombs change as the increase of the strain. The deformation of the node area has a significant effect on the effective elastic properties of the thick-walled honeycombs in the ribbon direction. The proposed method is suitable for predicting the in-plane elastic properties of thin/thick-walled honeycombs with different geometric parameters under small or large deformation.
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