2021
DOI: 10.31224/osf.io/e2vgj
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A Kinematic Variational Principle for Thin Metallic and Composite Plates Experiencing Large Deflections Above the Von Karman Limits

Abstract: Thin elastic plates (metallic or composite) experiencing large deflections are considered. The plate deflections are much larger than the plate thickness. The geometrically nonlinear elasticity theory and the Kirchhoff assumptions are employed. The elongations, the shears and the in-plane rotations are assumed to be small. A kinematic variational principle leading to a boundary value problem for the plate is derived. It is shown that the principle gives proper equilibrium equations and boundary conditions. For… Show more

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Cited by 3 publications
(7 citation statements)
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“…Обсудим особые решения полученных выше условий (6.72) оптимальности углов ориентации в слоях укладки при закритическом деформировании (Selyugin 2021b).…”
Section: особые (ортотропные) решения условий оптимальностиunclassified
“…Обсудим особые решения полученных выше условий (6.72) оптимальности углов ориентации в слоях укладки при закритическом деформировании (Selyugin 2021b).…”
Section: особые (ортотропные) решения условий оптимальностиunclassified
“…Substituting ( 4) in ( 7) and keeping in mind the small in-plane rotations, after cumbersome transformations we obtain (see Selyugin 2021) 1   (10) and…”
Section: Assumptionsmentioning
confidence: 99%
“…W is the potential of external "dead" forces and the superscript T means a transposition. The kinematic variational principle (the structural potential energy stationary principle derived in the paper of Selyugin, 2021), describes the plate postbuckling nonlinear behavior also.…”
Section: Lay-up Optimization Problemmentioning
confidence: 99%
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