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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 language | English |
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Title of host publication | 55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference |
DOIs | |
Publication status | Published - 28 Feb 2014 |
Event | 55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014 - National Harbor, MD, United States Duration: 13 Jan 2014 → 17 Jan 2014 |
Conference
Conference | 55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference - SciTech Forum and Exposition 2014 |
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Country/Territory | United States |
City | National Harbor, MD |
Period | 13/01/14 → 17/01/14 |
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Dive into the research topics of 'Local buckling of blade stiffened variable angle tow panels'. Together they form a unique fingerprint.Projects
- 1 Finished
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Aerostructural Efficiency of Damage Tolerant Composites via Optimised Fibre Placement.
Weaver, P. M. (Principal Investigator)
1/06/10 → 1/06/14
Project: Research