An issue of a stress-strain state three-layer cylindrical shell under variable loads has been considered. Assessment results with regard to the physical and mechanical characteristics an aggregate polymer filler its reinforcement intensity by means stiffening rings rigidly connected coating are presented in article. Calculations have performed using software Nastran. Values displacements stress...

The complex-shift method is applied to the Kuzmin-Toomre family of discs to generate a family of non-axisymmetric flat distributions of matter. These are then superposed to construct non-axisymmetric flat rings. We also consider triaxial potential-density pairs obtained from these non-axisymmetric flat systems by means of suitable transformations. The use of the imaginary part of complex-shifte...

We present a holographic PIV system which extends the standard PIV analysis scheme of two velocity components (2D2C) to the third dimension and overcomes the disturbing background light in deep volume images reconstructed from particle holograms. In a light-in-flight holography (LiFH) setup the short coherence length of a modified laser source is used to suppress light from out-of-focus regions...

In this paper, the internal resonance characteristics of hyperelastic cylindrical shells under time-varying temperature field are investigated for first time, and evolution isolated bubble is carried out. Through analysis influences on material parameters, strain energy density function in unsteady presented. The governing equations describing axisymmetric nonlinear vibration derived from thin ...

AQUINAS is a specialised MATLAB finite element (FE) toolbox for the nonlinear analysis of axisymmetric thin-walled shell systems, conceived by Authors to recover research functionality once widely available but now largely lost in age supposedly ‘general’ 3D FE software. exploits powerful built-in sparse linear algebra routines with efficient matrix assembly pre-compiled and parallelised C++ co...

A novel device to increase rotational capacity of steel end plate beam–column connections is proposed. By inserting a sleeve with designated length, thickness and wall curvature between the washer, load path bolts can be interrupted, promoting more ductile response. For specific material dimensions, controlled by amplitude value. The develops severe plastic deformations crushed washer at amplit...

Unmodified versions of common computer programs such as MODFLOW, MT3DMS, and SEAWAT that use Cartesian geometry can accurately simulate axially symmetric ground water flow and solute transport. Axisymmetric flow and transport are simulated by adjusting several input parameters to account for the increase in flow area with radial distance from the injection or extraction well. Logarithmic weight...