Cellular materials, such as aluminum foams, have proven to be excellent energy absorbents. They can used crushable core in sacrificial cladding (SC) for blast load mitigation. In this study, the absorption capacity of a brittle mineral foam-based SC is investigated through finite element modeling using LS-DYNA software. The experimental set-up consists rigid steel frame with square cavity 300 m...

In this paper, the bending performances of sandwich panels with corrugated triangular, honeycomb, aluminum foam, pyramidal truss, double sine (DSC), and 3D re-entrant auxetic cores are assessed compared, both experimentally numerically. Three-point experiments were performed on corrugated, truss core identical face-sheets height. The experimental numerical results compared well for honeycomb co...

The use of metal foams as permanent cores in casting products is a promising strategy. It aims to improve the properties cast components by adding certain foam features (e.g., lightweight, high specific stiffness, impact energy/vibration absorption ability, and good acoustic insulation properties). eliminates steps removal, treatment, compulsory recycling for traditional temporary sand cores. H...

Automobile light weight structural composites are subjected to the various loadings in their service lives. Honeycombs are increasingly used as core structures in automobile light weight structures as energy absorbers. In this paper the energy absorption of honeycomb panels under impact of cylindrical projectile is numerically and experimentally studied. The effect of the core materials and cro...

The indentation behaviour of aluminium foams at low velocity (10m/s ∼ 30m/s) was investigated both in experiments and numerical simulation in this paper. A flat-ended indenter was used and the force-displacement history was recorded. The Split Hopkinson Pressure bar was used to obtain the indentation velocity and forces in the dynamic experiments. Because of the low strength of the aluminium fo...

In this study, optimization is carried out to find the optimized design of a foam-filled column for the best Specific Energy Absorption (SEA) and Crush Force Efficiency (CFE). In order to maximize SEA, the optimization gives the value of 2.3 for column thickness and 151.7 for foam length. On the other hand to maximize CFE, the optimization gives the value of 1.1 for column thickness and 200 for...

Currently, liquid metal filtration in casting process is a familiar refining technology for casting process. This technique be able to exist removed the inclusions inside the melts and subsequently improves the mechanical properties of the product. Furthermore this will also improved the surface finish and tightness of cast product. This significantly reduced the rework cost. The present resear...

In order to explore the evolution of physical and mechanical properties acoustic emission (AE) characteristics aluminum foam under fatigue quasi-static compression from a microscopic point view, AE monitoring technology was used analyze deformation, hardening, energy absorption open-cell at different rates (2, 10 50 mm/min) loading tests with peak stress ratios k (k = maximum stress/yield stres...