Trailing arm is what it is usually referred to(at least around here) and there are a few other terms as well. I've seen and hear of a couple being bent, but not common at all unless it hits a rock or something, or someone hooks a tow chain to it or something similar that really shouldn't happen in normal driving.
I might have one, but wouldn't have time to pull it for a few days. I'm sure someone else might have one for you.
