Elastic analysis of orthotropic cylinders under different boundary conditions

Download

index.pdf

Date

2016

Author

Farukoğlu, Ömer Can

Metadata

Show full item record

Item Usage Stats

316
views

672
downloads

Analytical solutions are derived to examine the elastic responses of fixed end cylinders made of orthotropic materials. Cylinders are investigated under different boundary conditions which are internal pressure, external pressure, combined pressure and annular rotation respectively. Making use of Maxwell relations, orthotropic cylinders are transformed to isotropic ones. In order to exhibit numerical examples different orthotropic materials are used and compared. It is observed that orthotrophy slightly influences radial and tangential stresses. In other respects, orthotropy largely effects radial displacements and axial stresses.

Subject Keywords

Cylinders., Elasticity., Maxwell equations.

URI

http://etd.lib.metu.edu.tr/upload/12620183/index.pdf
https://hdl.handle.net/11511/25815

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Torque Components Identification of Induction Machine by FEM Skalka, Miroslav; Ondrusek, Cestmir; Schreier, Ludek; Michailidis, Petr (2011-09-10) This paper contains torque components identification of 3-phase induction machine. Electromagnetic torque and pulsating torque is calculated via a circular path integral of the Maxwell stress tensor which provides a convenient way of computing forces acting on bodies by evaluating a surface integral. Torque calculations are done by finite element method in ANSYS and MATLAB. Also there are identified a high harmonic components of calculated torque with additional asynchronous torque calculation. The torque i...
Thermal loading and unloading of a solid cylinder subjected to periodic internal energy cycling Eraslan, Ahmet Nedim (2017-03-01) An analytical model is developed to estimate partially plastic loading and unloading behavior of a transient internal energy cycling solid cylinder. The cylinder is initially at zero temperature, but for times greater than zero, heat is generated or consumed internally at a time dependent rate. The transient temperature distribution in the cylinder is obtained by using Duhamel's theorem. As the cylinder is heated or cooled slowly the uncoupled theory of thermal stress is used. Under these circumstances elas...
Elastic-plastic large strain large displacement analysis of sheet metal forming processes Darendeliler, Haluk (1998-08-21) An elastic-plastic finite element formulation is presented for three dimensional deformation analysis of sheet metal forming operations. The updated Lagrangian type formulation is based on membrane theory to analyze the large strain-large displacements. The sheet is considered isotropic that obeys Mises flow theory. The deformation is rate-insensitive and work-hardening property of the material is incorporated. Coulomb friction is applied between the sheet and punch and sheet and die interfaces. Triangular ...
Analytical solution to thermal loading and unloading of a cylinder subjected to periodic surface heating Eraslan, Ahmet Nedim (2016-01-01) An attempt is made to develop an analytical model for the prediction of thermal loading into a partially plastic state and unloading into an elastic state of a cylinder subjected to periodic boundary condition. The uncoupled theory of thermoelasticity is used as the cylinder is heated or cooled slowly. Transient temperature distribution in the cylinder is obtained by the use of Duhamel's theorem. It is assumed that the ends of the cylinder are free and hence a state of generalized plane strain is operative ...
Regular Polygonal and Regular Spherical Polyhedral Linkages Comprising Bennett Loops Kiper, Goekhan; Söylemez, Eres (2009-05-08) In this study, assemblies of Bennett loops constructing regular polygonal linkages and regular polyhedral linkages are presented. The regular polyhedral linkages, necessarily, depend on spherical polyhedral shapes. Most of the resulting linkages have single degree of freedom, but there are exceptions such as a cubic linkage.

Citation Formats

Ö. C. Farukoğlu, “Elastic analysis of orthotropic cylinders under different boundary conditions,” M.S. - Master of Science, Middle East Technical University, 2016.