TY - GEN

T1 - Out-of-plane compressive buckling strengths of regular hexagonal honeycombs with plateau borders

AU - Yang, Mei Yi

AU - Huang, Jong-Shin

PY - 2008/12/1

Y1 - 2008/12/1

N2 - The effects of variable-thickness cell edges on the out-of-plane compressive buckling strengths of regular hexagonal honeycombs is investigated and presented here. A three-dimensional (3D) representative volume element (RVE) honeycomb model with appropriate periodic boundary conditions was proposed and employed to numerically calculate the out-of-plane compressive buckling strengths of regular hexagonal honeycombs with variable-thickness cell edges. In the RVE honeycomb model, the non-uniform cross-section of cell edges is taken to be a plateau border. Finite element numerical results indicate that the out-of-plane compressive buckling strengths of regular hexagonal honeycombs with plateau borders, normalized by those of same relative-density honeycombs with uniform-thickness cell edges, increase slightly at the beginning and then fall dramatically after reaching a maximum value as the solid is shifted into the plateau border region in cell edges. The maximum out-of-plane compressive buckling strengths of regular hexagonal honeycombs with plateau borders can be 40% higher than those with uniform-thickness cell edges. Also, the effects of solid distribution in cell edges on the out-of-plane compressive buckling strengths of regular hexagonal honeycombs with plateau borders are dependent on their relative density.

AB - The effects of variable-thickness cell edges on the out-of-plane compressive buckling strengths of regular hexagonal honeycombs is investigated and presented here. A three-dimensional (3D) representative volume element (RVE) honeycomb model with appropriate periodic boundary conditions was proposed and employed to numerically calculate the out-of-plane compressive buckling strengths of regular hexagonal honeycombs with variable-thickness cell edges. In the RVE honeycomb model, the non-uniform cross-section of cell edges is taken to be a plateau border. Finite element numerical results indicate that the out-of-plane compressive buckling strengths of regular hexagonal honeycombs with plateau borders, normalized by those of same relative-density honeycombs with uniform-thickness cell edges, increase slightly at the beginning and then fall dramatically after reaching a maximum value as the solid is shifted into the plateau border region in cell edges. The maximum out-of-plane compressive buckling strengths of regular hexagonal honeycombs with plateau borders can be 40% higher than those with uniform-thickness cell edges. Also, the effects of solid distribution in cell edges on the out-of-plane compressive buckling strengths of regular hexagonal honeycombs with plateau borders are dependent on their relative density.

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M3 - Conference contribution

AN - SCOPUS:84887524319

SN - 9784901381321

T3 - Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008

SP - 311

EP - 314

BT - Progress of Composites 2008 in Asia and Australasia - Proceedings of the 6th Asian-Australasian Conference on Composite Materials, ACCM 2008

T2 - 6th Asian-Australasian Conference on Composite Materials: Progress of Composites 2008 in Asia and Australasia, ACCM 2008

Y2 - 23 September 2008 through 26 September 2008

ER -