Aluminum foam that is lightweight with high specific strength, energy absorption and other characteristics can be used in aerospace, transportation, machinery manufacturing fields. The PCM method usually to prepare closed-cell aluminum foams. microsized foams made by this process solve the non-uniform pore structures caused liquid drainage during foaming of large surface morphology internal str...

In this work, a paraffin- metal foam composite were prepared by the vacuum impregnation method. Aluminum and nickel foams used. The aim of study is to characterize thermal behavior these composites with view their use for management Li-ion batteries. First, conductivities diffusivities in solid state evaluated using Hot Disk Thermal Constants Analyzer (TPS 2500S) Transient Guarded Plate Techniq...

The rate of batch-to-glass conversion is a primary concern for the vitrification of nuclear waste, as it directly influences the life cycle of the cleanup process. This study describes the development of an advanced model of the cold cap, which augments the previous model by further developments on the structure and the dynamics of the foam layer. The foam layer on the bottom of the cold cap co...

ABAQUS can be utilized in the numerical simulation of active feedback control for the purpose of vibration suppression of structural systems. Using the example of active control of a cantilever beam, the Positive Position Feedback (PPF) control algorithm is coupled into an ABAQUS dynamical structural model with the assistance of user-defined subroutines. The transient response of the beam with ...

The goal of the present research is to develop a better understanding of the tensile response of open-cellular aluminum 6061 T6 alloy. Both tensile and compression samples of this metallic foam were tested under constant strain rate conditions at 293, 423, and 523 K. Scanning electron microscopy was performed on individual struts to assess the modes and mechanisms associated with fracture. Theo...

The high strain rate behavior of two cellular materials was investigated using a quasi-static loading stage and a Kolsky bar apparatus. The yield stress of these core materials under dynamic loading was found higher than in quasi-static loading. However, the plateau stress after yielding is not so sensitive to strain rate. For Aluminum foam materials, the deformation was more localized for quas...

We propose a novel personal identification method, named Thermal-ID, which utilizes human body temperature as a source of identifying information. Thermal-ID is expressed by the temperature difference generated by partially covering the surface of the body with thermal barrier material (e.g., cutout urethane foam-coated aluminum foil). The aim is to positively identify a subject with minimal di...

The mechanical behavior of aluminum hexagonal honeycombs subjected to out-of-plane dynamic indentation and compression loads has been investigated numerically using ANSYS/LS-DYNA in this paper. The finite element (FE) models have been verified by previous experimental results in terms of deformation pattern, stress-strain curve, and energy dissipation. The verified FE models have then been used...

We propose a novel personal identification method, named Thermal-ID, which utilizes human body temperature as a source of identifying information. Thermal-ID is expressed by the temperature difference generated by partially covering the surface of the body with thermal barrier material (e.g., cutout urethane foam-coated aluminum foil). The aim is to positively identify a subject with minimal di...