Abstract We present an experimental study of the dynamics shocks generated by interaction a double-spot laser in different kinds targets: simple aluminum foils and foam–aluminum layered targets. The experiment was performed using Prague PALS iodine working at 0.44 μm wavelength irradiance few 10 15 W/cm 2 . Shock breakouts for pure Al foam-Al targets have been recorded time-resolved self-emissi...

Most polymeric tribological components are inherently insulative, resulting in susceptibility to failure from frictional heating at the PV limit, which is typically reported as a product of the heat flux terms pressure (P) and sliding speed (V). This letter reports on the design of a tribological composite for increased thermal conductivity and PV limit. The control sample is an unfilled compos...

In Thailand, ceramic jars (135-200 liters) covered by aluminum lids commonly are used to store water for household use. In laboratory cages, gravid female Aedes aegypti (L.) were able to enter and oviposit in a covered water jar. Although the aluminum lid was not a complete barrier to gravid females, it reduced the number of eggs oviposited by 77%. A vertically oriented foam rubber ring which w...

Three stochastic open-cell aluminum foam samples were incrementally compressed and imaged using X-ray Computed Tomography (CT). One of the samples was created using conventional investment casting methods and the other two were replicas of the same foam that were made using laser powder bed fusion. The reconstructed CT data were then examined in Paraview to identify and highlight the types of f...

In this paper, the free vibration analyses of aluminum-foam sandwich structures were completed numerically. Foam and aluminum (Al) used for core surface layers structure, respectively. addition, an adhesive was as a thin film. Natural frequencies mode shapes structure obtained different thickness materials. For this, three structures, with same thickness, modeled SS1, SS2 SS3. Analyses performe...

Uniform and graded chemical milling of aluminum foams Y. Matsumoto a,∗, A.H. Brothers b, S.R. Stock c, D.C. Dunand b a Department of Mechanical Engineering, Oita National College of Technology, 1666 Maki, Oita 870-0152, Japan b Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL 60208-3108, USA c Department of Molecular Pharmacology and Biol...

Over the past several decades, aluminum foam (Al-foam) has found increasing popularity in industrial applications due to its unique material properties. Unfortunately, till date Al-foam can only be affordably manufactured in flat panels, and it becomes necessary to bend the foam to the final shape that is required in engineering applications. Past studies have shown that thin cell walls crack a...

The slow compressional wave in air-saturated aluminum foams was studied by means of ultrasonic transverse transmission method over a frequency range from 0.2 MHz to 0.8 MHz. The samples investigated have three different cell sizes or pores per inch (5, 10 and 20 ppi) and each size has three aluminum volume fractions (5%, 8% and 12% AVF). Phase velocities show minor dispersion at low frequencies...

High-density aluminum foam can provide higher stiffness and absorb more energy during the impact Obtaining constitutive law of such requires tri-axial tests with very high pressure, where difficulty may arise because hydrostatic pressure reach than 30 MPa. In this paper, instead using tests, we proposed three easier tests—tension, compression shear to obtain parameters model (the Deshpande–Flec...