Equivalent single layer and layerwise models for flutter and buckling analysis of supersonic variable stiffness laminated composite plates

被引：9

作者：

Moreira, J. A. ^{[1
]}

Moleiro, F. ^{[1
]}

Araujo, A. L. ^{[1
]}

Pagani, A. ^{[2
]}

机构：

[1] Univ Lisbon, IDMEC, Inst Super Tecn, Ave Rovisco Pais 1, P-1049001 Lisbon, Portugal

[2] Politecn Torino, Dept Mech & Aerosp Engn, MUL2, Corso Duca Abruzzi 24, I-10129 Turin, Italy

来源：

THIN-WALLED STRUCTURES | 2023年 / 191卷

基金：

欧洲研究理事会;

关键词：

Panel flutter; Buckling; Variable stiffness composites; Layerwise theory; Equivalent single layer theory; AEROELASTIC ANALYSIS; PINCHED PANELS; OPTIMIZATION; VIBRATION;

D O I：

10.1016/j.tws.2023.111012

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This work provides an assessment of Equivalent Single Layer (ESL) and Layerwise finite element models, aimed for panel flutter and buckling analysis of supersonic variable stiffness composites, exploring variable-order shear deformation theories and Lagrange z-expansions. Numerical applications focus on simply supported panels with curvilinear fibre composite layers, including a cross-ply configuration for comparison purposes, and various side-to-thickness ratios. The accurate prediction of transverse shear and bending-twisting coupling is highlighted, as rather necessary for proper tailoring and analysis of supersonic curvilinear composites, especially when including in-plane loads. This is attainable through high-order ESL descriptions, in thin panels, even without thickness stretching.

引用

页数：13

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