复杂多边形蜂窝柔性蒙皮非线性行为数值分析

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中图分类号：V214.6；TP391.9 文献标志码：B

Numerical analysis of nonlinear behavior of complex polygonal honeycomb flexible skin

AI Sen，GUO Yuchao， ZHANG Changxing，WANG Likai， CHANG Liang

NationalKeyLaboratoryoftrengthandStructuralIntegrityicraftStrengthRsearchIstituteofCina，Xi'an6，ina

Abstract： The numerical simulation of flexible skin structure based on complex polygon honeycomb is carried out to study the nonlinear deformation behavior of flexible honeycomb under tensile，shear， torsion and bending loads，and the deformation and strength of structures with no rubber layer，unilateral rubber layer，and bilateral rubber layer are analyzed.The results show that honeycombs without rubber layers may undergo significant deformation under relatively small loads.A unilateral rubber layer may cause structural asymmetry， potentially leading to asymmetric deformation under shear and torsional loads.Bilateral rubber layers play a significant role in restraining the structure.The addition of rubber layers may result in honeycomb flexible skins，which originally exhibit zero Poisson’s ratio or negative Poisson’ratio effects， showing positive Poisson’s ratio behavior.

Key words：morphing aircraft；honeycomb； flexible skin；rubber；nonlinear behavior；numerical analysis；Poisson's ratio

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