Related Experiment Video
Updated: May 24, 2025

Casting Protocols for the Production of Open Cell Aluminum Foams by the Replication Technique and the Effect on Porosity
Published on: December 11, 2014
A novel aluminum foam structure for combined excellent wave attenuation and ventilation performance
Tiancong Hao1,2, Xiaoning Yang3,4, Aming Xie1
1School of Safety Science and Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China.
Abstract:
In this paper, a novel aluminum foam structure with wave attenuation and ventilation performance suitable for underground space is designed and prepared. It focuses on dynamic response of aluminum foam structure under explosion impact load and ventilation resistance at different wind speeds. Failure modes of each component are analyzed and attenuation mechanism of explosive shock wave are revealed. The results indicate that: under the synergistic action of the crushing behavior of the aluminum foam cells, the rough wall structure of the ventilation holes and the special diagonal square honeycomb-shaped structure, the wave attenuation effect of the aluminum foam structure is significantly improved. The max wave attenuation rate can reach to 99.1%. For this aluminum foam structure, the wind speeds are 4.32 m/s and 9.31 m/s while the ventilation resistances are 119.46 Pa and 641.44 Pa. It indicates its excellent ventilation performance. Therefore, the novel aluminum foam structure has a good application prospect in underground space construction.
More Related Videos
10:27Simultaneous Multi-surface Anodizations and Stair-like Reverse Biases Detachment of Anodic Aluminum Oxides in Sulfuric and Oxalic Acid Electrolyte
Published on: October 5, 2017
10:29Experimental Methodology for Estimation of Local Heat Fluxes and Burning Rates in Steady Laminar Boundary Layer Diffusion Flames
Published on: June 1, 2016
Related Concept Videos
Thermal Insulation in Masonry Walls
External insulation can be applied using an Exterior Insulation and Finish System (EIFS), which involves affixing panels of plastic foam to the wall and covering them with a polymeric stucco reinforced with glass fiber mesh....
Masonry Curtain Walls
Cavity Drainage and Flashings in Masonry walls
Weep holes, strategically placed at the base of the cavity, are critical for draining accumulated water. These openings are created by leaving head...
Composite Masonry Walls
Masonry Cavity Walls
Maintaining a clean cavity during construction...
Design Example: Calculating Safe Diameter for Wind-Exposed Disc