This paper presents a research work on stacking sequence design optimisation for multilayered composite plate using a parallel/distributed evolutionary algorithm. The stacking sequence of fibres has a dramatic influence on the strength of multilayered composite plates. Multiple layers of fibre-reinforced material systems offer versatility in engineering material design due to the fact that the ...

Promising configurations for grating-waveguide structures are presented. In these structures, the grating layer, which is normally adjacent to the waveguide layer, is displaced by means of an intermediate layer, resulting in significant reduction of losses and weaker coupling. This leads to very narrow spectral bandwidths and high contrast ratios. Experimental results reveal that the spectral b...

This paper presents a robust approach for calculating spatial-domain Green’s functions on the interface or close to the interface of planar multilayered microstrip structures with lossless or lossy dielectric materials for a wide range of frequencies and layer thicknesses. We compute the mixed potential Green’s functions for distance for 200 points from 0.1 to 10 wavelengths. The CPU is less th...

The omega or pseudochiral medium is an artificial complex medium [1], which can be fabricated by doping a host isotropic medium with Ω-shaped planar conducting microstructures. An externally applied field induces both an electric and magnetic polarization, which are perpendicular to each other. The electromagnetic properties of these magnetoelectric media can be used in the design of reciprocal...

We examine deformation mechanisms and performance of multilayered structures inspired by imbricated scale-tissue systems of elasmoid fish. Exact analytical solutions are derived for these soft composite structures undergoing finite deformation in compressive and bending loading conditions. The layered structure leads to dramatic coupled shear-compressive deformations which afford distinct and a...

We describe a new modular method for the calculation of wave propagation in stratified media based on the direct use of reflection and transmission coefficients. Within this reflection from the left, transmission, and reflection from the right (LTR) method we define addition and multiplication operators that enable the theoretical construction of any multilayered structures from substructures. ...

The integrity of bonded structures is of paramount importance in the safe and reliable operation of aircraft equipment. Fuselages, helicopter rotor blades and nose cones are multilayered composite structures bonded together. The operational readiness and security of these units depend to a large extent on the integrity of the interfacial bonds. Adhesive and cohesive strength studies do not appe...