in this paper, the deformation of a thick-walled circular cylindrical shell of incompressible isotropic elastic material is considered. the shell, which is made of three-term strain energy function is subjected to the combined external and axial loading pressure. in order to obtain the relevant eigenvalues, which is the main objective of the work, the incremental equilibrium equations are so...

The high efficiency of monocoque cylindrical shells in carrying axial loads is curtailed by their extreme sensitivity to imperfections. For practical applications, this issue has been alleviated by introducing closely stiffened shells which, however, require expensive manufacturing. Here we present an alternative approach that provides a fundamentally different solution. We design symmetry-brea...

A circular polarization sensor is feasible to detect a sea-skimming cruise missile in a solar corridor. We report the simulated performance results of a shipboard medium-wave infrared (MWIR) circular polarization sensor to detect a sea-skimming missile above rough sea surface. The sensor observed total and circular target and sea clutter signals at night and during daytime in and out of the sol...

A circular polarization sensor is feasible to detect a sea-skimming cruise missile in a solar corridor. We report the simulated performance results of a shipboard medium-wave infrared (MWIR) circular polarization sensor to detect a sea-skimming missile above rough sea surface. The sensor observed total and circular target and sea clutter signals at night and during daytime in and out of the sol...

An optical Doppler tomography (ODT) system that permits imaging of fluid flow velocity in highly scattering media is described. ODT combines Doppler velocimetry with the high spatial resolution of low-coherence optical interferometry to measure fluid flow velocity at discrete spatial locations. Tomographic imaging of particle flow velocity within a circular conduit submerged 1 mm below the surf...

in this study, aerodynamic characteristics of a circular cylinder in an axial flow have been investigated numerically and experimentally. the model has been considered as a cylinder with truncated nose and fineness ratio of 3 (length to diameter ratio of 3). the investigation involves a series of wind tunnel measurements, flow visualization, and numerical simulation. we used different mach numb...

[1] We present a model of effusive silicic volcanic eruptions which relates magma chamber and conduit physics to time‐dependent data sets, including ground deformation and extrusion rate. The model involves a deflating chamber which supplies Newtonian magma through a cylindrical conduit. Solidification is approximated as occurring at fixed depth, producing a solid plug that slips along its marg...

In recent years application of CFRP sheets in the strengthening of the concrete circular column has increased numerously. Knowing the exact behavior of concrete cylindrical columns confined with CFRP is of the first order of importance. ISIS Code of Canada has given relations for strength increase of circular columns confined with CFRP sheets, these relations are defined for a specified range o...