On the use of temperature-dependent physical properties in thermomechanical calculations for solid and hollow cylinders

被引:35
作者
Argeso, Hakan [1 ]
Eraslan, Ahmet N. [2 ]
机构
[1] Baskent Univ, Dept Mech Engn, TR-06530 Ankara, Turkey
[2] Middle E Tech Univ, Dept Engn Sci, TR-06531 Ankara, Turkey
关键词
stress analysis; thermoelasticity; temperature-dependent properties; Von Mises' criterion; shooting method;
D O I
10.1016/j.ijthermalsci.2007.01.029
中图分类号
O414.1 [热力学];
学科分类号
摘要
The use of temperature-dependent physical properties in estimating the thermoelastic response of cylinders and tubes is assessed. A computational model in cylindrical polar coordinates is constructed for this purpose. The model incorporates experimental data to describe the temperature dependency of the modulus of elasticity E, the Poisson's ratio v, the yield strength sigma(0), the coefficient of thermal expansion alpha, and the thermal conductivity k of steel. Various numerical examples, including plane strain and generalized plane strain problems, are handled. The predictions are compared to those that assume: (1) constant Poisson's ratio v, (2) constant v and linear variations for E, alpha(0), alpha, and k, (3) constant E, alpha, k, and v, and variable yield strength sigma(0), (4) constant properties for all. It is shown that, for reliable solutions to thermoelastic problems, the variations of E, sigma(0), alpha, and k with temperature must be taken into account. The inclusion of temperature vs. Poisson's ratio data into the model, though, is not of vital importance.
引用
收藏
页码:136 / 146
页数:11
相关论文
共 20 条
[1]   Thermal stress analysis of thermoviscoelastic hollow cylinder with temperature-dependent thermal properties [J].
Araki, W ;
Adachi, T ;
Yamaji, A .
JOURNAL OF THERMAL STRESSES, 2005, 28 (01) :29-46
[2]  
ARGESO H, 2005, P 6 INT C THERM STRE, V1, P203
[3]   THE INFLUENCE OF THE TEMPERATURE-DEPENDENCE OF THE YIELD STRESS ON THE STRESS-DISTRIBUTION IN A THERMALLY ASSEMBLED ELASTIC-PLASTIC SHRINK FIT [J].
BENGERI, M ;
MACK, W .
ACTA MECHANICA, 1994, 103 (1-4) :243-257
[4]  
Boley B.A., 1960, Theory of Thermal Stresses
[5]  
Eraslan A. N., 2005, Turkish Journal of Engineering and Environmental Sciences, V29, P113
[6]  
Eraslan A. N., 2004, INT J NONLINEAR ANAL, V1, P27
[7]  
Eraslan A. N., 2005, INT J NONLINEAR ANAL, V2, P31
[8]   Stress distributions in cooling fins of variable thickness with and without rotation [J].
Eraslan, AN ;
Kartal, ME .
JOURNAL OF THERMAL STRESSES, 2005, 28 (08) :861-883
[9]   Stress distributions in energy generating two-layer tubes subjected to free and radially constrained boundary conditions [J].
Eraslan, AN ;
Sener, E ;
Argeso, H .
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2003, 45 (03) :469-496
[10]   Computation of transient thermal stresses in elastic-plastic tubes: Effect of coupling and temperature-dependent physical properties [J].
Eraslan, AN ;
Orcan, Y .
JOURNAL OF THERMAL STRESSES, 2002, 25 (06) :559-572