This paper studies acoustic emission (AE) wave propagation in a glass fibre aluminium honeycomb sandwich panel (HSP). Of particular novelty is the quantification of through-thickness AE from one surface HSP to other, which real-world monitoring consideration for applications where instrumentation only be permissible on surface, i.e. aerofoils. Complexity was introduced specimens stages enable t...

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...

This numerical study compares single-phase forced convective heat transfer between two sandwich panels with tetrahedral metallic lattice cores separately fabricated by investment casting and the more cost-effective metal sheet folding method. The numerical model is validated against available experimental data. For a given Reynolds number and core porosity, the results reveal that the brazed sa...

Composite sandwich materials have yet to be widely adopted in the construction of naval vessels despite their excellent strength-to-weight ratio and low radar return. One barrier to their wider use is our limited understanding of their performance when subjected to air blast. This paper focuses on this problem and specifically the strength remaining after damage caused during an explosion. Carb...

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 panels are used in many industries for their lightweight compared to high strength. Most of the sandwich application bending and compression, which relies on core type panel. Widely additive manufacturing is pyramid cell cores. In this article, two new cores, reinforced model C-half circle model, proposed replace pyramidal verify advantages disadvantages with respect it compression ben...

in this paper, dynamic analysis of the composite truncated sandwich conical shells (stcs) with various boundary conditions subjected to low velocity impact was studied analytically, based on higher order sandwich panel theory. impact was assumed to occur normally over to the top face-sheet and the contact force history is predicted using two solution models of the motion are derived based on ha...

Structural performance in direct (pure) shear and three-point bending was investigated for sandwich panels with a carbon fiber pyramidal truss core. Analytical estimates for sandwich panel strength for each loading condition were presented for possible competing failure modes. In the experimental part of the study, pyramidal truss cores were made using the hot press molding technique and then a...