Infinite cylinder with a transverse crack and two rigid inclusions under axial tension

Toygar, Meltem Evren


Problem of cracked infinite hollow cylinder with two rigid inclusions
Altundağ Artem, H. Seçil; Geçit, M. Ruşen; Department of Engineering Sciences (1999)
Surface cracking in an orthotropic medium subjected to frictional contact
Sarikaya, Duygu; Dağ, Serkan (2016-07-01)
This article presents an analytical method capable of resolving the coupled problem of surface cracking in an orthotropic elastic medium subjected to frictional contact by a rigid flat punch. Reciprocal influences between the surface crack and the flat punch are accounted for by establishing a fully coupled formulation. Governing partial differential equations involving the displacement components are derived in accordance with plane theory of orthotropic elasticity. General solutions corresponding to mode ...
Cracked infinite cylinder with two rigid inclusions under axisymmetric tension
Toygar, M. Evren; Gecit, M. Rusen (2006-08-01)
This paper considers the problem of an axisymmetric infinite cylinder with a ring shaped crack at z = 0 and two ring-shaped rigid inclusions with negligible thickness at z = +/- L. The cylinder is under the action of uniformly distributed axial tension applied at infinity and its lateral surface is free of traction. It is assumed that the material of the cylinder is linearly elastic and isotropic. Crack surfaces are free and the constant displacements are continuous along the rigid inclusions while the stre...
Modified Combined Tangential Formulation for Stable and Accurate Analysis of Plasmonic Structures
Karaosmanoglu, Bariscan; Ergül, Özgür Salih (2017-03-30)
We present a modified combined tangential formulation (MCTF) for stable solutions of plasmonic problems involving metallic objects that are modeled as penetrable structures. For a wide range of negative real permittivity values, corresponding to the varying characteristics of the metals at infrared and visible frequencies, MCTF provides both accurate and efficient solutions in comparison to the conventional formulations. We explain the stability of MCTF in terms of the discretized operators for the limit ca...
Characteristic Mode Analysis of Unit Cells of Metal-Only Infinite Arrays
Haykır, Yiğit; Aydın Çivi, Hatice Özlem (2019-09-01)
Characteristic mode analysis of metal only unit cells of periodic structures is performed using Method of Moments based formulation. Ewald's transformation is incorporated for a fast and cost efficient solution and the advantages over spatial Green's function are discussed. The influence of the unit cell size on the characteristic modes is demonstrated. Various metal-only reflectarray elements are compared and their radiation characteristics are interpreted using the theory of characteristic modes. It is sh...
Citation Formats
M. E. Toygar, “Infinite cylinder with a transverse crack and two rigid inclusions under axial tension,” Ph.D. - Doctoral Program, Middle East Technical University, 1998.