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

Gangadharan Raju; Zhangming Wu; Paul M. Weaver

doi:10.1016/j.ijsolstr.2015.01.011

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

Gangadharan Raju, Zhangming Wu, Paul M. Weaver

University of Bristol

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	270-287
Number of pages	18
Journal	International Journal of Solids and Structures
Volume	58
DOIs	https://doi.org/10.1016/j.ijsolstr.2015.01.011
Publication status	Published - 1 Apr 2015
Externally published	Yes

Keywords

Buckling
Differential quadrature method
Postbuckling
Variable angle tow composite plates

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10.1016/j.ijsolstr.2015.01.011

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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 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.",

keywords = "Buckling, Differential quadrature method, Postbuckling, Variable angle tow composite plates",

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AU - Raju, Gangadharan

AU - Wu, Zhangming

AU - Weaver, Paul M.

PY - 2015/4/1

Y1 - 2015/4/1

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 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.

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 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.

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KW - Differential quadrature method

KW - Postbuckling

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VL - 58

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EP - 287

JO - International Journal of Solids and Structures

JF - International Journal of Solids and Structures

ER -

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

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Keywords

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