Buckling and Postbuckling Analysis of Laminated Shell Structures by Finite Elements Based on the Third Order Theory

Maksimović, Stevan

doi:10.1007/978-94-011-3662-4_7

Cited by 1 publication

(3 citation statements)

References 8 publications

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“…In the present work, thermal buckling analyses of multilayered composite panel using discrete finite element model is presented. The finite element model is based on the refined higher order theories [24][25][26][27][28] that considers the effect of transverse normal deformation.…”

Section: Nonlinear Analysismentioning

confidence: 99%

“…7, to determine the least eigenvalue λ and the associated mode shape δu. The critical temperature T CR of the plate is calculated using: (8) In the present analysis, a 4-node quadrilateral from the 'serendipity' family of twodimensional C o continuous isoparametric element with 8 degrees of freedom per node [28] is used. The formulation of a 4-nodes shell finite element that can be good enough also if applied to the thin multilayered plates or shells is by no means an easy matter.…”

Section: Thermal Buckling Analysismentioning

confidence: 99%

“…In the case of the negligible mid-surface normal stress  z the stress-displacement relationships, stress resultants and the constitutive equations associated with HOST are given in [27] and [28].…”

Section: Fig 1 Improved 4-nodes Shell Finite Elementmentioning

confidence: 99%

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Buckling and postbuckling behavior of shell type structures under thermo mechanical loads

Vasic

Maksimović²,

Maksimović³

et al. 2021

THERM SCI

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The thermomechanical buckling and postbuckling behavior of layered composite shell type structure are considered with the finite element method (FEM) under the combination of temperature load and applied mechanical loads. To account for through-thickness shear deformation effects, the thermal elastic, Higher-Order Shear deformation Theory (HOST) is used in this study. The refined higher order theories, that takes into account the effect of transverse normal deformation, is used to develop discrete finite element models for the thermal buckling analysis of composite laminates. Attention in this study is focused on analyzing the temperature effects on buckling and postbuckling behavior of thin shell structural components. Special attention in this paper is focused on studying of values of the hole in curved panel on thermal buckling behavior and consequently to expend and upgrade previously conducted investigation. Using FEM, a broader observation of the critical temperature of loss of stability depending on the size of the hole was conducted. The presented numerical results based on HOST can be used as versatile and accurate method for buckling and postbuckling analyzes of thin-walled laminated plates under thermo-mechanical loads.

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