The problem of the out of plane buckling of polar orthotropic armuli under uniform internal or external pressure loading has been investigated with the assumption of axisymmetry by numerous researchers. In this paper, the buckling of polar and rectilinearly orthotropic annuli subjected to internal or external pressure loading is examined without restriction to axisymmetric buckling modes. The b...

In the present study, time period of vibration an orthotropic parallelogram plate with 2 − D (two-dimensional) circular thickness under effect id="M2"> parabolic temperature is investigated for first time. The different edge conditions are id="M3"> C , id="M4"> F id="M5"> id="M6"> S an...

Functionally graded materials (FGMs) enable one to tailor the spatial variation of material properties so as to fully use the material everywhere. For example, in a hollow circular cylinder one can vary, in the radial direction, the material moduli to make the hoop stress constant. Whereas the problem for a hollow cylinder with the inner and the outer surfaces circular has been studied, that of...

The non-circular streaming motions in barred galaxies are sensitive to the mass of the bar and can be used to lift the degeneracy between disk and dark matter halo encountered when fitting axisymmetric rotation curves of disk galaxies. In this paper, we present photometric and kinematic observations of NGC 4123, a barred galaxy of modest size (Vrot = 130 km s , L = 0.7L∗), which reveal strong n...

Stress Intensity Factors (SIFs) for cracks emanating from circular holes in two-dimensional orthotropic bodies were numerically computed taking into account the effect of geometry and orthotropy. A semi-analytical expression correction factor was found fitting numerical data. Finally, it demonstrated how same can be used to calculate SIF elliptical once appropriate changes variables are made. •...