3 ms·
Question: If it hardens when it is disturbed, does it mean that it hardens if the wearer runs, for example? This would mean you still can't properly armor joint
by eslachance 15y ago
Question: If it hardens when it is disturbed, does it mean that it hardens if the wearer runs, for example? This would mean you still can't properly armor joints...
- tocomment 15y agoI think the more force (or acceleration?) it undergoes the more it hardens. So hopefully running wouldn't affect it, but a fast moving projectile would. Have a good day.
- Retric 15y ago500+MPH impacts are vary different than simple joint movements. Think of it like this, if you slowly move your hand though water you don't feel any resistance, jump off a bridge and hit it at 100MPH and the stuff might as well be concrete.
- icegreentea 15y agoShear thickening fluids have a non-linear relationship between shear rate and shear stress. Schematically, it's the green line in this graph [1]. By choosing your material carefully, you can minimize shear stress at 'running' speeds, and then sharply ramp it up to protect against faster projectiles. [1] http://en.wikipedia.org/wiki/File:Shear_rate_vs._Shear_stress.png http://en.wikipedia.org/wiki/File:Shear_rate_vs._Shear_stres...
- eslachance 15y agoThanks for all the answers everyone, I get it now :)