Stability and vibrations of compressible hyperelastic cylindrical shells

Akyüz, Uğurhan


Transient response of an infinite elastic medium containing a spherical cavity subjected to torsion
Zakout, U; Akkas, Z; Tupholme, GE (2000-06-01)
An exact closed-form solution is obtained for the transient response of an infinite isotropic elastic medium containing a spherical cavity subjected to torsional surface loading using the residual variable method. The main advantage of the present approach is that it eliminates the computational problems arising in the existing methods which are primarily based on Fourier or Laplace transformation techniques. Extensive numerical results for the circumferential displacements and shear stresses at various loc...
Analysis of laminated glass arches and cylindrical shells
Dural, Ebru; Aşık, Mehmet Zülfü; Department of Engineering Sciences (2011)
In this study, a laminated glass unit which consists of two glass sheets bonded together by PVB is analyzed as a curved beam and as a cylindrical shell. Laminated glass curved beams and shells are used in architecture, aerospace, automobile and aircraft industries. Curved beam and shell structures differ from straight structures because of their initial curvature. Because of mathematical complexity most of the studies are about linear behavior rather than nonlinear behavior of curved beam and shell units. T...
Estimation of ductility in asymmetric-plan structures
Kaatsız, Kaan; Sucuoğlu, Haluk (2021-01-01)
© 2021 COMPDYN Proceedings.Ductility demands observed in asymmetric plan structures due to earthquake excitations are investigated in this study. Torsional Ductility Spectra are utilized to estimate the maximum ductility response of such systems. Dynamic response of these systems are dominated by the lower vibration modes and observed seismic behavior is in conformance with the capacity design principles. In order to utilize the Torsional Ductility Spectra, five parameters of the asymmetric plan systems, na...
Design and economical evaluation of sucker rod and electrical submersible pumps : oil wells in a field, Turkey
Ceylan, Sevil Ezgi; Gümrah, Fevzi; Department of Petroleum and Natural Gas Engineering (2004)
There are some alternatives of artificial lift methods to increase the production of oil well or to keep it producing. Sucker rod pumping (SRP) and electrical submersible pumping (ESP) systems are selected for the design and economical evaluation of thirteen oil wells of R field. Although selected wells are already producing artificially, they are redesigned for SRP and ESP. LoadCalC software developed by Lufkin and SubPUMP developed by DSSC are used for SRP and ESP designs respectively. For economic evalua...
External Search Coil as a Means of Measuring Rotor Speed of an Induction Motor
Özlü Ertan, Hatice Gülçin; Keysan, Ozan (2009-07-03)
The study in this paper investigates whether the air gap harmonics can be identified by using an external search coil placed on the frame of an induction motor. For this purpose the study focuses on the prediction of rotor speed of an induction motor from external search coil emf, using spectral analysis techniques. In the first stage of the study the type of search coil which maximizes the induced emf is sought, also the position of the coil on the induced emf is investigated. Several motors are tested wit...
Citation Formats
U. Akyüz, “Stability and vibrations of compressible hyperelastic cylindrical shells,” Ph.D. - Doctoral Program, Middle East Technical University, 1998.