Soft Electronics Conventional soft conductors are characterized by a large change in conductance upon mechanical deformation. In article number 2212688, Fabian Schütt, Stefan Schröder, and co-workers, combine thin film deposition technologies three-dimensional fashion, resulting multi-layered ultra-lightweight foam-like framework structures based on poly(3,4-ethylenedioxythiophene):poly(styrene...

In this paper, a unified analytical approach is proposed to investigate vibrational behavior of functionally graded shells. Theoretical formulation is established based on Sanders’ thin shell theory. The modal forms are assumed to have the axial dependency in the form of Fourier series whose derivatives are legitimized using Stokes transformation. Material properties are assumed to be graded in...

Foam injection is becoming a standard conditioning agent when tunnelling with an earth-pressure balanced shield, resulting in an increasing interest in this technique. The technique is mostly based on empirical rules and experience. To be able to determine what foam and how may foam has to be injected for different soils, it is necessary to know the mechanical parameters of the foam-water-soil ...

In this study, the feasibility of using Lamb waves in functionally graded (FG) nano copper layered wafers nondestructive evaluation is evaluated. The elastic parameters and mass densities these vary with thickness due to variation grain size. power series technique used solve governing equations variable coefficients. To analyze multilayered structures, which material are continuous but underiv...

Application of foam in EOR, increases macroscopic sweep efficiency via awesome increscent of mobility control. Macroscopic manifestation of foam application performance in porous media is complex process that involves several interacting microscopic foam events. Stability as an important factor in foam injection within large reservoirs, depends on several variables including oil saturation, con...

Abstract In this research, the metallic phase Aluminium (Al) and ceramic Oxide (Al 2 O 3 ) were combined in different proportions for preparation of five-layered Al-Al functionally graded material. Delamination or crack is common problem at metal-ceramic interface because large difference material properties. Therefore, main objective research was to investigate defects within layer during proc...