A metal foam is a cellular structure consisting of a solid metal (frequently aluminium) with gas-filled pores comprising a large portion of the volume. The pores can be sealed (closed-cell foam) or interconnected (open-cell foam). The defining characteristic of metal foams is a high porosity: typically only 5–25% of the volume is the base metal, making these ultralight materials. The strength of the material is due to the square-cube law.
An interesting topic for testing mint foam.
As is verifiable in order to determine the strength, it is necessary to know a few parameters - the transverse area on which the load is applied, the type of defects and the foaming structure. For sponge materials. It would be best to order the average size of the cells then transferred to the test area
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