4 Citations (Scopus)

Abstract

In recent years analytical methods and finite element analysis (FEA) have shown that variable angle tow (VAT) laminates deliver a significant improvement in buckling and post- buckling performance. However to date, most research has been limited to simple geome- tries, such as plates and shells, with standard boundary conditions; a large gap exists between these analyses and real life structural scenarios. A potential for exploitation of this enhanced buckling performance exists by applying VAT to the skin of a stiffened panel configuration. Herein, a generalised Rayleigh-Ritz procedure is used to perform prebuckling and buckling analysis on a stiffened VAT panel taking into account the often neglected, yet significant, stiffener foot and transverse shear effects via a first order shear deformation theory (FSDT). Initial results, compared with FEA (ABAQUS), indicate that this semi- analytical method is an accurate and efficient alternative to the computationally expensive FEA and hence, is useful for the design and optimisation of stiffened VAT panels.

Original languageEnglish
Title of host publication55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference
DOIs
Publication statusPublished - 28 Feb 2014
Event55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014 - National Harbor, MD, United States
Duration: 13 Jan 201417 Jan 2014

Conference

Conference55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014
CountryUnited States
CityNational Harbor, MD
Period13/01/1417/01/14

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