A STUDY ON EQUIVALENT FLEXURAL RIGIDITY OF COMPLEX POLYGONAL HONEYCOMB STRUCTURE

The equivalent flexural rigidity of a complex polygonal honeycomb structure is investigated in this study. The honeycomb is equivalent to a orthogonal anisotropic plate for calculating the deformation energy under uniform bending moment,and the deformation energy of each wall is summed,then the anal...

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Bibliographic Details
Published inJi xie qiang du Vol. 39; pp. 122 - 129
Main Authors GUO YuChao, WANG LiKai, DUAN ShiHui
Format Journal Article
LanguageChinese
Published Editorial Office of Journal of Mechanical Strength 15.02.2017
Subjects
Polygon;Honeycomb structure;Energy equivalence principle;Equivalent flexural stiffness
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Summary:The equivalent flexural rigidity of a complex polygonal honeycomb structure is investigated in this study. The honeycomb is equivalent to a orthogonal anisotropic plate for calculating the deformation energy under uniform bending moment,and the deformation energy of each wall is summed,then the analytical expressions for the equivalent flexural stiffness of honeycomb structure were derived based on the energy equivalence principle. The angle and length of walls has a great influence on equivalent flexural stiffness,the changes of angle and length will lead to positive and negative changes of the coupling stiffness,the absolute value of flexural stiffness increases with the increase of the wall’s height and thickness. The validity of the present analysis is demonstrated by the inversion results obtained by the finite element method.
ISSN:1001-9669
DOI:10.16579/j.issn.1001.9669.2017.01.021