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Dynamics of Asymmetric Three-Layer Hemispherical Shells with a Discrete-Inhomogeneous Filler Under Pulsed Loads.
- Source :
- Strength of Materials; Mar2023, Vol. 55 Issue 2, p265-276, 12p
- Publication Year :
- 2023
-
Abstract
- The paper deals with the dynamics of asymmetric three-layer hemispherical shells with the discretely symmetric lightweight, rib-reinforced filler under pulsed loads. Since the distances between the ribs are much larger than the dimensions of the rib cross-sections, the theory of independent static and kinematic hypotheses for each layer is applied. In asymmetric shells, the load-bearing layers are made of different materials and have various thicknesses. The equations of motion of asymmetric three-layer spherical shells and natural boundary conditions are obtained using the Hamilton– Ostrogradsky variational principle for the Timoshenko-type shell and rod theory model. This makes it possible to develop an adequate finite element model for asymmetric three-layer shells composed of several materials and obtain numerical results on the dynamic behavior of an asymmetric three-layer elastic structure using the finite element method. The influence of physical and mechanical parameters of asymmetric layers of hemispherical shells on the stress-strain state under axisymmetric internal pulse loading is investigated. New mechanical effects are revealed. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00392316
- Volume :
- 55
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Strength of Materials
- Publication Type :
- Academic Journal
- Accession number :
- 164420178
- Full Text :
- https://doi.org/10.1007/s11223-023-00521-8