nah, dismemberment is out of their power to accomplish, primate limbs "were" designed for brachiation (tree swinging), so naturally the joints and surrounding tissues are most resistant to tension along the length of the extremity.
most men with minimal training can hold two automobiles against each other going in opposite directions for a long while before damage, and that leverage can't be replicated by like batman or someone. a T-800 could possibly do it but, i bet it would crush the wrist bones before it removed an arm.
Hmmm.. I thought maybe. LIke some monster or a man like in the World strongest man championships would be able to maybe. If he had one foot on your chest and he held you by you forearm and pulled really hard while forcing the rest of your body down via his foot... Idk anyway thats IRL. Comics... for some reason i can see this happening.. since far more ridiculous shit happens in comics.
Hmmm... I saw some ridiculous scan of a batman.. he was bound up by chains and the chains were builts into the wall. and he freaking ripped out of it. BS to me but I was thinking hey if he could do that he can rip off another guy's arm.
Anyway thats batman.. Idk how BP would do.. I'm confident Captain America can do this since he got some very over the top impressive strength feats for a "peak human."