I know this is an old post by now but it seems to me like the metal cage is stiff enough that the energy may be internally dissipated by the rubber from the puck elastically deforming, while with the kevlar cage almost all the force is absorbed by the thread.
Shooting pucks at a concrete wall (at different puck temperature) should give an idea how much energy the rubber dissipates when hitting something with no give, but yeah ultimately its not the same as hitting a helmet and you probably have more important things to focus on.
I have no clue about hockey, I'm mostly here cause I've tried inventing stuff and the whole back and forth between "this idea is awesome" and "how did I fool myself into thinking the concept I'm exploring has any potential value" is way too relatable.
I know this is an old post by now but it seems to me like the metal cage is stiff enough that the energy may be internally dissipated by the rubber from the puck elastically deforming, while with the kevlar cage almost all the force is absorbed by the thread.
Could very well be true! Will probably have to wait until I have access to much better testing equipment to learn what's really going on.
Shooting pucks at a concrete wall (at different puck temperature) should give an idea how much energy the rubber dissipates when hitting something with no give, but yeah ultimately its not the same as hitting a helmet and you probably have more important things to focus on.
I have no clue about hockey, I'm mostly here cause I've tried inventing stuff and the whole back and forth between "this idea is awesome" and "how did I fool myself into thinking the concept I'm exploring has any potential value" is way too relatable.
Glad you're liking it!