Buckling and postbuckling of variable angle tow composite plates under in-plane shear loading

Gangadharan Raju, Zhangming Wu, Paul M. Weaver

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

A geometrically nonlinear analysis of symmetric variable angle tow (VAT) composite plates under in-plane shear is investigated. The nonlinear von Karman governing differential equations are derived for
postbuckling analysis of symmetric VAT plate structures which are subsequently solved using the differential quadrature method. The effect of in-plane extension-shear coupling on the buckling and postbuckling performance of VAT composite plates is investigated. The buckling and postbuckling behaviour of VAT plates under positive and negative shear is studied for different VAT fibre orientations, aspect ratios, combined axial compression and their performance is compared with that of straight fibre composites. It is shown that there can be enhanced shear buckling and postbuckling performance for both displacement-control and load-control and that the underpinning driving mechanics are different for each.
LanguageEnglish
Pages270-287
Number of pages18
JournalInternational Journal of Solids and Structures
Volume58
Early online date16 Jan 2015
DOIs
Publication statusPublished - Apr 2015

Fingerprint

Postbuckling
Composite Plates
buckling
Buckling
shear
Angle
composite materials
Composite materials
Displacement control
Axial compression
Nonlinear analysis
Fiber reinforced materials
Aspect ratio
Mechanics
Differential equations
Plate Structures
fiber orientation
Differential Quadrature Method
Fiber Orientation
fiber composites

Keywords

  • postbuckling
  • variable angle tow (VAT)
  • composites
  • Airy's stress function
  • differential quadrature method

Cite this

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title = "Buckling and postbuckling of variable angle tow composite plates under in-plane shear loading",
abstract = "A geometrically nonlinear analysis of symmetric variable angle tow (VAT) composite plates under in-plane shear is investigated. The nonlinear von Karman governing differential equations are derived forpostbuckling analysis of symmetric VAT plate structures which are subsequently solved using the differential quadrature method. The effect of in-plane extension-shear coupling on the buckling and postbuckling performance of VAT composite plates is investigated. The buckling and postbuckling behaviour of VAT plates under positive and negative shear is studied for different VAT fibre orientations, aspect ratios, combined axial compression and their performance is compared with that of straight fibre composites. It is shown that there can be enhanced shear buckling and postbuckling performance for both displacement-control and load-control and that the underpinning driving mechanics are different for each.",
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Buckling and postbuckling of variable angle tow composite plates under in-plane shear loading. / Raju, Gangadharan; Wu, Zhangming; Weaver, Paul M.

In: International Journal of Solids and Structures, Vol. 58, 04.2015, p. 270-287.

Research output: Contribution to journalArticle

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AU - Wu, Zhangming

AU - Weaver, Paul M.

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N2 - A geometrically nonlinear analysis of symmetric variable angle tow (VAT) composite plates under in-plane shear is investigated. The nonlinear von Karman governing differential equations are derived forpostbuckling analysis of symmetric VAT plate structures which are subsequently solved using the differential quadrature method. The effect of in-plane extension-shear coupling on the buckling and postbuckling performance of VAT composite plates is investigated. The buckling and postbuckling behaviour of VAT plates under positive and negative shear is studied for different VAT fibre orientations, aspect ratios, combined axial compression and their performance is compared with that of straight fibre composites. It is shown that there can be enhanced shear buckling and postbuckling performance for both displacement-control and load-control and that the underpinning driving mechanics are different for each.

AB - A geometrically nonlinear analysis of symmetric variable angle tow (VAT) composite plates under in-plane shear is investigated. The nonlinear von Karman governing differential equations are derived forpostbuckling analysis of symmetric VAT plate structures which are subsequently solved using the differential quadrature method. The effect of in-plane extension-shear coupling on the buckling and postbuckling performance of VAT composite plates is investigated. The buckling and postbuckling behaviour of VAT plates under positive and negative shear is studied for different VAT fibre orientations, aspect ratios, combined axial compression and their performance is compared with that of straight fibre composites. It is shown that there can be enhanced shear buckling and postbuckling performance for both displacement-control and load-control and that the underpinning driving mechanics are different for each.

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KW - variable angle tow (VAT)

KW - composites

KW - Airy's stress function

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