In this paper an experimental-numerical approach is presented to tackle the vibro-acoustic characterization of composite sandwich structures. A novel experimental setup allows for fast and comprehensive understanding of the NVH behaviour of composite sandwich panels. This information can then be further exploited in numerical model updating and design tools for optimized solutions. Experimental...

The nonlinear bending of the sandwich plates with graphene nanoplatelets (GPLs) reinforced porous composite (GNRPC) core and two metal skins subjected to different boundary conditions various loads, such as concentrated load at center, linear loads slopes passing through eccentric uniform trapezoidal has been presented. popular four-unknown refined theory accounting for thickness stretching eff...

In this paper, the effect of different boundary conditions on the free vibration analysis response of a sandwich plate is presented using the higher order shear deformation theory. The face sheets are orthotropic laminated composites that follow the first order shear deformation theory (FSDT) based on the Rissners-Mindlin (RM) kinematics field. The motion equations are derived considering the c...

In biopharmaceutical production, the optimization of cell culture media and supplementation is a vital element of process development. Optimization is usually achieved through the screening of multiple media, feed and feeding strategies. However, most screening is performed in shake flasks, which makes the screening process very time consuming and inefficient. The use of small scale culture sys...

In the present work a non-linear dynamic response of a continuous sandwich beam with SMA hybrid composite face sheets and flexible core is analyzed taking into account the phase transformation and also the material non-linearity effects, for every point along the face sheets. The one-dimensional constitutive equation of SMA proposed by Brinson is employed. Equations of motion are derived using ...

The sandwich composites in this study are laminated structures with two outer thin glass fiber reinforced panels and one or more thick lightweight foam as the core material. Such often used wind turbine blade. Impact-Echo method using a microphone receiver was to test composite panel specimens. signals were analysed frequency domain normalized by Rayleigh wave amplitude. Preliminary results sho...

Sandwich structure composites produced by epoxy core and aluminium skin were developed as potential building materials. Interface bonding between core and skin was controlled by varying kenaf content. Five different weight percentage of kenaf loading ranging from 10 wt% to 50 wt% were employed in the core manufacturing in order to study the mechanical properties of the sandwich composite. Prope...