Light-Weighting in Transportation and Defence Using Aluminium Foam Sandwich Structures

We review the status of Aluminium Foam Sandwich (AFS) technology and discuss both recent improvements of foaming technology and current applications. It is concluded that the quality of foams has improved in the past years and costs are slowly decreasing. This is why applications in which metal foams have more than one function are more likely to be economically viable. The examples presented here include battery cases for electric cars, crash absorbers, high-speed train front heads and blast protectors for vehicles and tanks.