The asymptotic solutions of thermoelasticity dynamic problems for laminated thin body with variable thickness consisting of anisotropic inhomogeneous materials
Journal Title: Հայաստանի գիտությունների ազգային ակադեմիայի տեղեկագիր․ Մեխանիկա - Year 2009, Vol 62, Issue 3
Abstract
On the base of three-dimentional equations of anisotropic body thermoelasticity dynamic problem the recurrent equations for laminar inhomogeneous thin body are derived by asymptotic method. The equations are integrated under the anisotropy possessing in each point with one symmetry plane, perpendicular to transversal axis z. The recurrent formulas for the determination of displacement vector component and stress tensor are derived when on the face of lamination various modifications of boundary conditions for dynamic problem of the thermoelasticity theory are specified. The amplitudes of forced vibrations are obtained. The dispersion equations of natural oscillations frequency as well as resonance frequency for special case are derived. An algorithm for determination of analytical solutions of formulated boundary problems with the help of modern computer facilities is developed.
Authors and Affiliations
M. L. Aghalovyan, R. S. Gevorgyan
Optimization problems on stiffness, vivrations and stability of a multi-layer made of layers with elastic characteristics.
c
The axisymmetric bending of circular plates impaired by crack
In the article it has been considered the axisymmetric bending of circular plate with constant thickness, which has been impaired by crack. It has been analyzed the results depending on length and position of crack.
Natural vibration of an imponderable cylindrical shell subjected to inner pressure.
c
About stability of beam with two concentrated forces
The dynamic and static stability of beam in dependence from position and direction of two concentrated forces is studied.
On Asymptotic Solution of Thermoelastic Problem for Isotropic Plates
The asymptotic method of the solution of boundary value problem of elasticity theory is effective for anisotropic plates and shells with the kinematical and mixed boundary conditions [1-3]. In this work the asymptotic me...