Thermal stresses in elastic-plastic tubes with temperature-dependent mechanical and thermal properties

The thermoelastic-plastic deformations of internal heat-generating tubes are investigated by considering the temperature dependence of the thermal conductivity coefficient, Young's modulus, the coefficient of thermal expansion, and the yield limit of the material. A model describing the elastic-plastic behavior of the tube is developed. The model consists of a system of two second-order ordinary differential equations and a first-order ordinary differential equation involving nonlinear temperature-dependent coefficients. The computer solution of the model is obtained, and the results are compared with the analytical solution that assumes constant thermomechanical properties. It is found that the difference between the two solutions becomes significant in the regions of high temperatures.


Elastic-plastic deformation of a heat generating tube with temperature-dependent yield stress
Gulgec, M; Orcan, Y (2000-01-01)
The distribution of stress, plastic strain and displacement in an elastic-perfectly plastic tube with fixed ends in the presence of a uniform heat source is investigated analytically by taking into consideration the temperature dependence of the yield limit. The treatment is based on Tresca's yield condition and its associated flow rule. Depending on the radius ratio of the tube, in general, five different plastic regions, two of them corresponding to an edge regime of Tresca's prism, and an intermediate el...
Elastic-plastic deformation of a rotating solid disk of exponentially varying thickness
Eraslan, Ahmet Nedim (2002-07-01)
The elastic-plastic deformation of a rotating solid disk of variable thickness in exponential form is investigated using Tresca's yield criterion, its associated flow rule and linear strain hardening. An analytical solution is obtained and numerical results are presented for different values of the geometric parameters. In the limiting case of uniform thickness the solution reduces to Garner's solution.
Magnetization Studied as a Function of Temperature and Magnetic Field for Ferromagnetic Transition in DMNaFe
Kilit Dogan, E.; Yurtseven, Hasan Hamit (Springer Science and Business Media LLC, 2020-08-01)
Magnetization has been calculated as a function of temperature in the ferromagnetic phase of (CH3)(2)NH2Na0.5Fe0.5(HCOO)(3)denoted by DMNaFe as one of the metal formate framework by using molecular field theory. CalculatedM(T) is compared with the magnetization measured as a function of temperature (H = 10 Oe) in field-cooling and zero-field-cooling regimes from the literature, and a power-law analysis of the experimental data was performed for DMNaFe. Magnetization measured as a function of the magnetic fi...
KHAJIL, TMA; Tomak, Mehmet (1989-05-01)
The electrical resistivity of liquid Al−Mg and Al−Cu alloys is calculated using both the Faber-Ziman and «2k F» scattering theories. The partial structure factors are described by the hard-sphere system. The calculated resistivity values are in qualitative agreement with available experimental data.
Thermal stress problems ın FGMS
Akdoğan, Esra Nur; Kadıoğlu, Fevzi Suat; Department of Mechanical Engineering (2019)
In this thesis transient temperature distribution, thermal stresses and thermal stress intensity factors (TSIFs) of an infinitely long functionally graded material (FGM) strip containing periodic cracks under thermal shock are studied. Thermal shock is applied by imposing a sudden change in the boundary temperatures. Solution of the present thermoelasticity problem is considered in three successive steps. First the thermal (conduction) problem is solved and the transient temperature distribution is determin...
Citation Formats
Y. Orcan and A. N. Eraslan, “Thermal stresses in elastic-plastic tubes with temperature-dependent mechanical and thermal properties,” JOURNAL OF THERMAL STRESSES, pp. 1097–1113, 2001, Accessed: 00, 2020. [Online]. Available: