Not really, no.
Since you're finding most of these on corpses they've already been used or are in pretty bad condition. It won't be odd to find a weapon with low durability, and they'll break once they reach 0.
That said, there's a decent amount of weapons to find, as well as one weapon that never breaks.
There may also be Whet stones which restore a bit of durability, but it won't be much. The idea was that items are limited so you have to do the best with what you currently have available. This way it's a bit more survivalist.