Ar500 steel plate can stop rifle bullets. In my brain I’m thinking like “well if kevlar is stronger than steel, then slab of kevlar of the same size of an ar500 plate should stop rifle bullets too”. Clearly it doesn’t and I don’t understand why
In: Engineering
Kevlar can absolutely stop rifle bullets, with enough layers. Enough layers of anything can stop rifle rounds. The issue is weight and mass. A Kevlar vest that would reliably stop a, let’s say, 30.06 ball round, and not leave you with kinetic damage from the impact as discussed in other comments (broken bones, ruptured organs, internal bleeding, etc) would be ridiculously thick. One would looked like Michelin Man, or Stay Puft. Steel or ceramic is added to the armor as plates to cut down on the thickness required. So.e of the first bulletproof armors were just layered silk shirts, but to be fair that was back when black powder and round shot was king of the day.
Paul Harrell in his videos demonstrates repeatedly when shooting either the meat target or Shasta bottles that several layers of fleece will stop rifle rounds (after going through meat and oranges or 2liter soda bottles).
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