Figure 5 | Scientific Reports

Figure 5

From: Transition of deformation modes from bending to auxetic compression in origami-based metamaterials for head protection from impact

Figure 5

Experimental setup for sled testing. (a) The equipped sled and seat are accelerated by compressed air based on UN regulations. The crash-test dummies set on the seats move frontward, and their heads collide with the EA structures set in the seat. (b) Auxetic structures in the seat frame and (c) steel plates commonly used EA structures.

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