A general process for optimization of a sandwich panel to minimize the effects of air blast loading is presented here. The panel geometry consists of two metal face plates with a crushable honeycomb or other type of core. Optimization is necessary as there is strong coupling between the several variables and the physics, which makes parametric studies relatively ineffective. Virtual testing is ...

We develop a hydroelastic model based on a {3,2}-order sandwich composite panel theory and Wagner’s water impact theory for investigating the fluid–structure interaction during the slamming process. The sandwich panel theory incorporates the transverse shear and the transverse normal deformations of the core, while the face sheets are modeled with the Kirchhoff plate theory. The structural mode...

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 ...

This work describes the low-velocity impact behavior of composite sandwich panels with different types auxetic (negative Poisson’s ratio) and non-auxetic prismatic core structures. Sandwich have been manufactured carbon/fiber epoxy face sheets, polyurethane rigid foam or 3D printed PLA plastic cellular honeycombs head (hexagonal, re-entrant, hexachiral arrowhead). The material properties consti...

In order to obtain a lightweight, high strength, and large design space wooden sandwich structure meet the needs of modern buildings, mechanical properties fabricated 2D pyramid lattice were studied. this paper, compressive specimens with different arrangement Lattice Sandwich unit cells are The upper lower panels core materials made into single cell by inserting glue, prefabricated truss is pr...

Sandwich panel adalah kombinasi antara dua pelat kayu yang dipisahkan oleh bagian inti (core). Manfaat dari penggunaan spesimen ini masih belum maksimal hanya sebatas non struktual pada pembuatan kapal kayu. Tujuan penelitian untuk mengetahui karakteristik sandwich dengan metode casting dan hand layup. Hasil pengujian densitas memiliki nilai lebih baik 1,11 gram/cm³ sedangkan murni 1,21 gram/cm...