TRANSIENT THERMOELASTIC PROBLEM OF A BONDED TRANSVERSELY ISOTROPIC INFINITE CYLINDER AND A RIGID RING

1987 ◽  
Vol 10 (3) ◽  
pp. 229-242 ◽  
Author(s):  
Naotake Noda ◽  
Fumihiro Ashida
1987 ◽  
Vol 54 (4) ◽  
pp. 854-860 ◽  
Author(s):  
N. Noda ◽  
F. Ashida

The present paper deals with a transient thermoelastic problem for an axisymmetric transversely isotropic infinite solid with a penny-shaped crack. A finite difference formulation based on the time variable alone is proposed to solve a three-dimensional transient heat conduction equation in an orthotropic medium. Using this formulation, the heat conduction equation reduces to a differential equation with respect to the spatial variables. This formulation is applied to attack the transient thermoelastic problem for an axisymmetric transversely isotropic infinite solid containing a penny-shaped crack subjected to heat absorption and heat exchange through the crack surface. Thus, the thermal stress field is analyzed by means of the transversely isotropic potential function method.


1974 ◽  
Vol 41 (2) ◽  
pp. 507-511 ◽  
Author(s):  
A. Atsumi ◽  
S. Itou

This paper concerns the analysis of the stress distribution arising in a transversely isotropic infinite cylinder having a spherical cavity under longitudinal tension. Boundary conditions on the surface of the cylinder and the cavity are well satisfied by using the methods of Hankel transform and Schmidt-orthonormalization. Numerical calculations for some practical materials are carried out and the influence of transverse isotropy upon stress distribution is clarified.


1989 ◽  
Vol 56 (4) ◽  
pp. 791-797 ◽  
Author(s):  
Naotake Noda ◽  
Fumihiro Ashida ◽  
Tomoaki Tsuji

The present paper discusses an analytical method for an inverse problem of three-dimensional transient thermoelasticity in a transversely-isotropic solid. The inverse thermoelastic problem consists of the determination of the condition of heating when the conditions of displacements and stresses are given at some points of the solid considered. Applying the Laplace and Fourier transforms as well as the new potential function method, the temperature, displacements, and stresses are represented by the potential functions alone, and they are determined from the prescribed conditions. The heating condition is obtained from the boundary condition for the temperature field. As a practical example of an inverse problem, the heating temperature of a transversely-isotropic infinite circular cylinder is determined in the case where the radial displacement is given at an arbitrary cylindrical section and the radial and shear stresses are free on the lateral surface of the cylinder. Numerical calculations are carried out to illustrate the heating temperature of the cylinder as well as the temperature and stresses on the lateral surface of the cylinder.


1959 ◽  
Vol 26 (4) ◽  
pp. 649-650
Author(s):  
J. Nowinski

Abstract This note concerns a hollow sphere composed of two different transversely isotropic layers and subjected to an internal pressure and a steady-state, spherically symmetrical temperature field. The sphere is surrounded by an elastic medium treated as a Winkler material or transversely isotropic medium, respectively.


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