Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
On the use of temperature-dependent physical properties in thermomechanical calculations for solid and hollow cylinders
Date
2008-02-01
Author
Argeso, Hakan
Eraslan, Ahmet Nedim
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
127
views
0
downloads
Cite This
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.
Subject Keywords
Stress analysis
,
Thermoelasticity
,
Temperature-dependent properties
,
Von Mises' criterion
,
shooting method
URI
https://hdl.handle.net/11511/38338
Journal
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
DOI
https://doi.org/10.1016/j.ijthermalsci.2007.01.029
Collections
Department of Engineering Sciences, Article
Suggestions
OpenMETU
Core
Computer Solutions of Plane Strain Axisymmetric Thermomechanical Problems
Eraslan, Ahmet Nedim (2005-08-01)
A simple computational model is developed to estimate elastic, elastic-plastic, fully plastic, and residual stress states in generalized plane strain axisymmetric structures considering temperature dependent physical properties as well as nonlinear isotropic strain hardening. Using the von Mises yield criterion, total deformation theory and a Swift-type nonlinear hardening law, a single nonlinear differential equation governing thermoelastoplastic behavior is obtained. A shooting technique using Newton iter...
On the elastic-plastic deformation of a centrally heated cylinder exhibiting linear hardening
Gulgec, M; Orcan, Y (1999-01-01)
A closed-form solution of the elastic-plastic deformation of a cylinder with uniform temperature inside its cylindrical core and zero surface temperature is presented for a linearly strain hardening material. The analysis is based on Tresca's yield condition and its associated flow rule. The effect of hardening on the expansion of plastic regions and on the distribution of stress is displayed graphically.
Von mises yield criterion and nonlinearly hardening variable thickness rotating annular disks with rigid inclusion
Eraslan, Ahmet Nedim (2002-09-01)
A computational model is developed to investigate inelastic deformations of variable thickness rotating annular disks mounted on rigid shafts. The von Mises yield condition and its flow rule are combined with Swift's hardening law to simulate nonlinear hardening material behavior. An efficient numerical solution procedure is designed and used throughout to handle the nonlinearities associated with the von Mises yield condition and the boundary condition at the shaft-annular disk interface. The results of th...
A computational model for partially plastic stress analysis of orthotropic variable thickness disks subjected to external pressure
Eraslan, Ahmet Nedim; Yedekçi, Buşra (2014-04-01)
A computational model is developed to predict the states of stressand deformation in partially plastic, orthotropic, variable thickness, nonisothermal, stationary annular disks under external pressure. Assuming a state ofplane stress and using basic equations of mechanics of a disk, Maxwell relation,Hill’s quadratic yield condition, and a Swift type nonlinear hardening law, asingle governing differential equation describing the elastic and partially plasticresponse of an orthotropic, variable thickness, non...
On the synthesis of a geared four-bar mechanism
PARLAKTAŞ, VOLKAN; Söylemez, Eres; TANIK, ENGİN (Elsevier BV, 2010-08-01)
This paper presents an analysis and synthesis method for a certain type of geared four-bar mechanism (GFBM) for which the input and output shafts are collinear. A novel analysis method is devised, expressions for the transmission angle are derived and charts are prepared for the design of such mechanisms. It is observed that the GFBM considered is inherently a quick-return mechanism. Large time ratios can be obtained with acceptable force transmission characteristics. During the working stroke, approximatel...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
H. Argeso and A. N. Eraslan, “On the use of temperature-dependent physical properties in thermomechanical calculations for solid and hollow cylinders,”
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
, pp. 136–146, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38338.