Analyses on mechanical properties of the cylindrical double-V honeycomb

Paper #:
  • 2018-01-0118

Published:
  • 2018-04-03
Abstract:
The double-V honeycombs (DVH) are a type of auxetic materials showing the negative Poisson’s ratio which can contract under compression different from the conventional materials. Due to the unique properties, it can have higher stiffness and better impact resistance with light weight. In this paper, a cylindrical honeycomb tube based on the double-V unit structure is proposed. First, the nominal Poisson’s ration, Young’s module in the longitudinal and circumferential directions and radial compliance are derived analytically. Also, the thickness in radial direction of the DVH honeycomb tube on these mechanical properties are analyzed. Second, the finite element(FE) method is utilized to obtain the numerical solutions and verify the accuracy of the analytical solutions. The results show that there is a good agreement between the results obtained by the two methods. Finally, the effect of the geometry parameters of the DVH honeycomb tube on the mechanical properties are studied thoroughly.
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