This is a ballistic gel that seems quite effective. Has anyone used this and if so how do you find the results? From what I gather is that the harder it is hit, the harder it becomes. It would seem a good thing to add to kevlar or other forms of protection as a cohesive system. D3O Lab | Impact Protection
looks interesting. Add that to ceramic plate and Kevlar... maybe it will take a hard hit and only leave a bruise
Shear thickening fluids ( dilatant) are neat and people have been working on adding them to regular Kevlar. A cool example of this in your house is oobleck the cornstarch and water mix. Other colloids can show this behavior. Other non Newtonian fluids include thixotropic/ pseudoplastic (shear thinning).
Common example is Miracle Whip. Shear thinning; put some in a bowl and stir vigorously, thins out some. Leave it along for a couple minutes, stiffens back up.
Shear Thickening Fluid (STF) Fabric Home There are several examples of how it strengthens fabrics to make tougher materials. I am thinking you could use this in conjunction with a super alloy to create a form fitting comfortable armor. Nickel-Based Super Alloy Inconel 625 - Properties and Applications by United Performance Alloys NOVA | The World's Strongest Stuff