Nonlinear equivalent calculation of the zero Poisson ratio honeycomb structure based on FE-RVE method
SUN Shiyong
HAN Xiaochan
YANG Rui
Abstract：The zero Poisson ratio honeycomb structure exhibits nonlinear phenomena in the deformation design process,which makes it difficult to predict and analyze its equivalent elastic performance.A zero Poisson ratio honeycomb structure equivalent calculation model based on the finite element(FE)method and the representative volume element(RVE)method was proposed.The RVE model was established using periodic boundary conditions with displacement constraints,and the applicability of shell elements and solid elements was compared.The stiffness updating method was used for nonlinear simulation calculation of the honeycomb structure equivalent model,and the accuracy of the calculation results was verified by comparison with existing theories,numerical methods and experiments.The influence of unit cell geometry parameters on the geometric nonlinear equivalent elastic modulus of accordion honeycomb structure was analyzed,providing an efficient calculation method for the nonlinear equivalent analysis of the zero Poisson ratio honeycomb structure.
Keywords：Zero Poisson ratioNonlinearRepresentative volume elementEquivalent elastic modulus
Publication Date：2025-11-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：7( 26-32 )