Figure 17. Sandwich-structured composites: (a) schematics showing elements of the sandwich structure [105]; (b) aluminum foam sandwich [105]; and (c,d) concept of applying the lightweight aluminum and ARPRO propylene-based foam sandwich material in a car (Inrekor, UK) [110].
Figure 17. Sandwich-structured composites: (a) schematics showing elements of the sandwich structure [105]; (b) aluminum foam sandwich [105]; and (c,d) concept of applying the lightweight aluminum and ARPRO propylene-based foam sandwich material in a car (Inrekor, UK) [110].