Compressive Behavior, Mechanical Properties and Energy Absorption of Al Honeycomb and Al Closed-Cell Foam: A Comparison
In this work, we focused on the characterization of closed-cell Al foams and aluminum honeycomb panels, in particular their energy absorption capacity under conditions of static compressive stress. Through experimental tests, the specific energy absorbed by different samples was evaluated: in the ho...
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2025-01-01
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| author | Alessandra Ceci Girolamo Costanza Maria Elisa Tata |
| author_facet | Alessandra Ceci Girolamo Costanza Maria Elisa Tata |
| author_sort | Alessandra Ceci |
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| description | In this work, we focused on the characterization of closed-cell Al foams and aluminum honeycomb panels, in particular their energy absorption capacity under conditions of static compressive stress. Through experimental tests, the specific energy absorbed by different samples was evaluated: in the honeycomb panels the mechanical behavior was analyzed both for large assemblies and for structures with a reduced number of cells, and the effect of the number of cells was studied too. Furthermore, for larger structures, the specific energy absorbed was calculated from stress–strain compressive graphs. For the closed-cell Al foams, manufactured in the laboratory using the powder compaction method with different percentages of SiC and TiH<sub>2</sub> and characterized by different relative densities, the specific energy absorbed was evaluated too. The experimental results showed that the specific energy absorbed by the Al honeycomb was always higher than that of the different types of closed-cell foams. However, when selecting the material for each specific application, it is necessary to take into account numerous parameters such as the relative density, absorbed energy, peak stress, plateau stress, plateau extension, densification strain and so on. Consequently, the overall performance must be evaluated from time to time based on the type of application in which the best compromise between strength, stiffness and lightness can be achieved. |
| format | Article |
| id | doaj-art-1a6d7cc95bcf406190235b7a74de9090 |
| institution | Kabale University |
| issn | 2226-4310 |
| language | English |
| publishDate | 2025-01-01 |
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| series | Aerospace |
| spelling | doaj-art-1a6d7cc95bcf406190235b7a74de90902025-01-24T13:15:32ZengMDPI AGAerospace2226-43102025-01-011213210.3390/aerospace12010032Compressive Behavior, Mechanical Properties and Energy Absorption of Al Honeycomb and Al Closed-Cell Foam: A ComparisonAlessandra Ceci0Girolamo Costanza1Maria Elisa Tata2Industrial Engineering Department, University of Rome Tor Vergata, 00133 Rome, ItalyIndustrial Engineering Department, University of Rome Tor Vergata, 00133 Rome, ItalyIndustrial Engineering Department, University of Rome Tor Vergata, 00133 Rome, ItalyIn this work, we focused on the characterization of closed-cell Al foams and aluminum honeycomb panels, in particular their energy absorption capacity under conditions of static compressive stress. Through experimental tests, the specific energy absorbed by different samples was evaluated: in the honeycomb panels the mechanical behavior was analyzed both for large assemblies and for structures with a reduced number of cells, and the effect of the number of cells was studied too. Furthermore, for larger structures, the specific energy absorbed was calculated from stress–strain compressive graphs. For the closed-cell Al foams, manufactured in the laboratory using the powder compaction method with different percentages of SiC and TiH<sub>2</sub> and characterized by different relative densities, the specific energy absorbed was evaluated too. The experimental results showed that the specific energy absorbed by the Al honeycomb was always higher than that of the different types of closed-cell foams. However, when selecting the material for each specific application, it is necessary to take into account numerous parameters such as the relative density, absorbed energy, peak stress, plateau stress, plateau extension, densification strain and so on. Consequently, the overall performance must be evaluated from time to time based on the type of application in which the best compromise between strength, stiffness and lightness can be achieved.https://www.mdpi.com/2226-4310/12/1/32closed-cell Al foamsAl honeycombstatic compression behaviorspecific energy absorptionlightweight materials |
| spellingShingle | Alessandra Ceci Girolamo Costanza Maria Elisa Tata Compressive Behavior, Mechanical Properties and Energy Absorption of Al Honeycomb and Al Closed-Cell Foam: A Comparison Aerospace closed-cell Al foams Al honeycomb static compression behavior specific energy absorption lightweight materials |
| title | Compressive Behavior, Mechanical Properties and Energy Absorption of Al Honeycomb and Al Closed-Cell Foam: A Comparison |
| title_full | Compressive Behavior, Mechanical Properties and Energy Absorption of Al Honeycomb and Al Closed-Cell Foam: A Comparison |
| title_fullStr | Compressive Behavior, Mechanical Properties and Energy Absorption of Al Honeycomb and Al Closed-Cell Foam: A Comparison |
| title_full_unstemmed | Compressive Behavior, Mechanical Properties and Energy Absorption of Al Honeycomb and Al Closed-Cell Foam: A Comparison |
| title_short | Compressive Behavior, Mechanical Properties and Energy Absorption of Al Honeycomb and Al Closed-Cell Foam: A Comparison |
| title_sort | compressive behavior mechanical properties and energy absorption of al honeycomb and al closed cell foam a comparison |
| topic | closed-cell Al foams Al honeycomb static compression behavior specific energy absorption lightweight materials |
| url | https://www.mdpi.com/2226-4310/12/1/32 |
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