This analytical study demonstrates shear elastic wave propagation in stratified waveguide with emphasis on localisation effects using the propagator matrix method. The consists of two-phase piecewise homogeneous periodically arranged finite number sub-layers along thickness. Analytical solutions are carried out for traction free waveguide. existence two modal types guided waves is established: ...

The synthesis of nanoscaled β-Bi(2)O(3) starting from the bismuth oxido clusters [Bi(6)O(4)(OH)(4)](NO(3))(6)·H(2)O, [Bi(22)O(26)(OSiMe(2)(t)Bu)(14)], [Bi(38)O(45)(NO(3))(20)(DMSO)(28)](NO(3))(4)·4DMSO and [Bi(38)O(45)(OMc)(24)(DMSO)(9)]·2DMSO·7H(2)O (OMc = O(2)CC(3)H(5)) under ambient conditions is reported. The metal oxido clusters are regarded as ideal precursors for β-Bi(2)O(3) due to their...

Shape memory materials have been widely used as programmable soft matter for developing multifunctional hybrid actuators. Several challenges of fabrication and effective modelling these actuating systems can be addressed by implementing novel 3D printing techniques simulations to aid the designer. In this study, temperature-dependent recovery an embedded U-shaped Memory Alloy (SMA) shape fixity...

The optical methods of Caustics, Photoelasticity and Isopachics for the evaluation of the stress intensity factors and the distribution of the principal stresses at a bi-material interface crack-tip, were proposed. The caustics, isochromatic and isopachic fringes are developed from the stress field which results from a stress function X(r, ). When the crack-tip, which is perpendicular to interf...