On the elastic-plastic deformation of a rotating disk subjected to a radial temperature gradient

Date

2003-11-01

Author

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

68
views

0
downloads

Elastic-plastic stress distribution in a nonisothermal rotating annular disk is analyzed by the use of Tresca and von Mises criteria. An energy equation that accounts for the convective heat transfer with a variable heat transfer coefficient is modeled. For a given angular velocity, the steady temperature distribution in the disk is obtained by the analytical solution of the energy equation. Tresca yield criterion and its associated flow rule are used to obtain the analytical stress distributions for a linearly hardening material. A computational model is developed to analyze elastic-plastic deformations of the disk using von Mises yield criterion and its flow rule. This model incorporates Swift's hardening law to simulate linear as well as nonlinear hardening material behavior. It is shown that the stress distribution in the disk is affected significantly by the presence of the temperature gradient.

Subject Keywords

Mechanical Engineering, Mechanics of Materials, Ocean Engineering, General Mathematics, Civil and Structural Engineering, Condensed Matter Physics, Automotive Engineering, Aerospace Engineering

URI

https://hdl.handle.net/11511/48468

Journal

MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES

DOI

https://doi.org/10.1081/sme-120023170

Collections

Department of Engineering Sciences, Article

Suggestions

OpenMETU
Core

Thermoplastic response of a linearly hardening cylinder subjected to nonuniform heat source and convective boundary condition Eraslan, Ahmet Nedim (Informa UK Limited, 2004-05-01) An analytical model based on Tresca's yield criterion and its L associated flow rule is developed to analyze the thermoelastoplastic response of a linearly hardening cylinder subjected to a nonuniform heat source and convective heat transfer condition at the external boundary. Closed form solutions are obtained for a state of generalized plane strain in different stages of elastic-plastic deformation. Considering a cylinder that is constrained axially, the plastic deformation commences at the axis and depen...
Elastoplastic analysis of nonlinearly hardening variable thickness annular disks under external pressure Eraslan, Ahmet Nedim; Guven, U (Elsevier BV, 2005-05-01) Based on von Mises' yield criterion, deformation theory of plasticity and Swift's hardening law, elasto-plastic deformation of variable thickness annular disks subjected to external pressure is studied. A nonlinear shooting method using Newton's iterations with numerically approximated tangent is designed for the solution of the problem. Considering a thickness profile in the form of a general parabolic function, the condition of occurrence of plastic deformation at the inner and outer edges of the annular ...
A method of strain and stress analysis for failure prediction in laminated composites Ardiç, E.S.; Bolcan, C.; Kayran, Altan (SAGE Publications, 1995-01-01) In this study, a method of strain and stress analysis is developed to predict the failure initiation in laminated composites containing two or more different kinds of laminae. In principle, the method developed in this study is similar to non-local elasticity, but the long-range interactions are considered on the strains instead of material moduli, and the method is developed and applied as a realistic and practical one. Firstly, the strain fields in each layer are determined separately and then these strai...
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...
On efficient use of simulated annealing in complex structural optimization problems Hasançebi, Oğuzhan (Springer Science and Business Media LLC, 2002-01-01) The paper is concerned with the efficient use of simulated annealing (SA) in structural optimization problems of high complexity. A reformulation of the working mechanism of the Boltzmann parameter is introduced to accelerate and enhance the general productivity of SA in terms of convergence reliability. Two general and complementary parameters, referred as "weighted Boltzmann parameter" and "critical Boltzmann parameter," are proposed, Several alternative methodologies are suggested for these two parameter...

Citation Formats

A. N. Eraslan, “On the elastic-plastic deformation of a rotating disk subjected to a radial temperature gradient,” MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES, pp. 529–561, 2003, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48468.