In this article, a nonlinear dynamical investigation of porose functionally graded cylindrical panels using proposed analytical model is carried out. The material's properties are considered to be porosity-dependent and in the thickness direction, corresponding power-law distribution. classical shell theory, with geometrical shape von Karman–Donnell, employed get Lagrange motion equations. By a...

Abstract Buckling and vibration study of the shape memory polymer composites (SMPC) across glass transition temperature under heterogeneous loading conditions are presented. Finite element analysis based on C° continuity equation through higher order shear deformation theory (HSDT) is employed considering non linear Von Karman approach to estimate critical buckling for span from 273 373 K. Exte...

Abstract This work investigates time-dependent ferrofluid flow past in a cylinder the presence of 10 kilo-ampere per meter magnetic field. The Reynolds number is about hundred to keep laminar and it high enough form von Karman vortex street. study presents results for velocity distributions, pressure lift coefficient, drag coefficient under influence stationary These are compared with absence f...

Abstract The formation of macrosegregation pattern in steel is explored for the continuous casting process. related solidification problem described by incompressible turbulent fluid flow, governed mass, momentum, energy, and species conservation equations. solid-liquid system designed a mixture continuum model formulation, mushy region approximated with Darcy model. lever rule describes micros...

This paper presents a numerical analysis of the influence von Karman vortex shedding at blade trailing edge on hydrodynamics recently installed small hydro Francis turbine manifesting very loud and high-frequency acoustic pulsations when operating close to nominal load. A reduced single-passage model is developed reduce computational effort simulation while ensuring high accuracy in assessment ...

the nonlocal nonlinear buckling of a double layer graphene sheet (dlgs) covered by zinc oxide (zno) piezoelectric layers is investigated in this study. the surrounding circumstances of the system are considered as a pasternak foundation including spring constants and a shear layer. graphene sheets are subjected to longitudinal magnetic field and biaxial forces. on the other hand, the zno piezoe...

There are many micro-structures that can be modelled as simple geometrical elements, such as beams with rectangular cross-sections or circular or rectangular plates. Examples of such structures abound in the MEMS literature [1-2]. Because they are very easy to manipulate, models based upon plate or beam approximations are very interesting. However, they are very often limited to the so-called “...