 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 12854 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8044
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| In English (Mech. Solids): | | 4810 |
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| << Previous article | Volume 53, Issue 7 / 2018 | Next article >> |
| V.N. Paimushin, "Nonlinear Theory of Sandwich Shells with a Transversely Soft Core Containing Delamination Zones and Edge Support Diaphragm," Mech. Solids. 53 (S1), 76-87 (2018) |
| Year |
2018 |
Volume |
53 |
Number |
S1 |
Pages |
76-87 |
| DOI |
10.3103/S0025654418030111 |
| Title |
Nonlinear Theory of Sandwich Shells with a Transversely Soft Core Containing Delamination Zones and Edge Support Diaphragm |
| Author(s) |
V.N. Paimushin (Tupolev Kazan National Research Technical University, Kazan, Tatarstan, 420111 Russia; Kazan Federal University, Kazan, Tatarstan, 420008 Russia, vpajmushin@mail.ru) |
| Abstract |
Sandwich shells with transversely soft cores and skin layers supported along the edges by a
thin deformable diaphragm with a ruled middle surface are considered. Delamination zones are
assumed on the contact surfaces between the core and skin layers. The refined geometrically nonlinear
theory has been constructed for these type of structures at small deformations and moderate displacements, which can describe prebuckling deformation and reveal all possible buckling mode shapes of
skin layers (antisymmetric, symmetric, mixed bending and mixed bending-shear, as well as arbitrary
mode shapes comprising all listed modes) and of the reinforcing diaphragm. This theory is based on
the introduction of interaction forces between the core and skin layers and between the core and reinforcing diaphragm at each point of the contact surfaces as unknowns. The previously proposed variant
of the generalized Lagrangian variational principle has been utilized in the derivation of the governing
equations, static boundary conditions for the shell and reinforcing diaphragm, and kinematic coupling
conditions between the core and skin and between the core and support diaphragm. |
| Keywords |
sandwich shells, transversely soft core, edge-support diaphragm, large rotation bending, refined sandwich core model, contact stresses, delamination zones, generalized Lagrangian variational principle |
| Received |
12 July 2016 |
| Link to Fulltext |
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