04 / Impact in motion
The same oval, foam and oblique impact. Only the order of the 16 composite plies changes. Play the two simulations together, inspect a ply’s direction, or cut away the shell to see the cushioning.
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Colors show recorded shell stress or computed liner compression. White marks follow the selected ply’s local material axis as the shell deforms. Positions are shown at their actual scale; time is slowed down. The wall remains fixed.
In compression mode, each shell-sized patch shows the largest principal shortening through the four foam elements beneath it. A cutaway exposes the head and liner boundaries; the clipping surface is only a viewing aid.
OpenCourant · 32 × 10 surface mesh · four foam elements through thickness · recorded every 0.25 ms · 3 m/s normal + 3 m/s tangential · assumed friction 0.2. Frames are sampled directly, without invented intermediate load paths. These models omit the facemask and retention hardware shown in the concept renderings.