A place for me to review the various rugged, nifty and needful kit that I've accumulated, for every-day preparedness in the event of accident, disaster or world-shifting end-times Apocalypse, be it zombies, triffids or Mayan divide-by-zero errors.
Here's a bit of fun I had a weekend or so ago. I have used polyethylene cutting boards as faux armour inserts for some time for my roleplaying and MilSim purposes. They're about the right sized and shape, are cheep, durable and stiff enough to add some realism without being either heavy, difficult to come by, or plain illegal for a Regular Aussie Bloke to have in their possession, unlike folks in other Western World nations with newly elected governments.
I've used polyethylene boards in the kitchen for a long while now, and have often marveled how they hold up to cuts, hacks and stabs. I have even on occasion, slipped one under a jumper when I've been "expecting some trouble" and helping out a friend in a possibly stabby situation, Ned Kelly style.
I loaded the cutting board into the front of the plate carrier, which I had loaded up with 10 2L bottles of water, giving it a mass of 20kg (45lbs) and suspended it on a Tough Hook, with side-supports, in the hope of mimicking a free standing human target. Hitting a board laying on a block of wood or even free standing wouldn't be a very good simulation of being stabbed, but I hoped that this set-up would, as well as giving me a penetration "bleed" effect, if anything managed to make it through the board.
Here is the video we made of the testing.
I gave each stab or thrust a "I want to do you harm" amount of effort. Taking from my 16 years of kendo I have a fairly good idea of what these impacts would have on an armored target, as well as stabbing a bunch of things over the years for the hells of it. I was pretty happy with my strikes.
Here is the board once we removed it and married it up to the footage.
The two main "bleeder" shots were the back of the M48 tomahawk, the American Kami Super Colubris and the maybe M48 spear (if it actually punched that hole of its own accord).
So, in conclusion, unless someone is coming at you with a spear, or the pointy breaching end of an axe, you will probably be able to shrug off some stabs, and certainly all the slashes that land on a cutting board under your shirt. The good thing about polyethylene is that it is heat-labile, meaning you could mold it to be more chest-shaped.
Obviously there are commercially available, professionally made and certified stab proof inserts and garments you could use, if they were legally available to you, but for my purposes, they sem to fit exactly what I need from them. Won't stop a bullet, sure, but will turn a blade wielded by someone as strong as me.