How resistant to fatigue are plastics compared to metals?

Question

Ram, a hard material isnt necessarily more fatigue resistant than a soft one. Compare a rock with a block of rubber. Hit them both with a hammer and see which breaks first.

Answer 1

it would depend on what kind of element a plastic or metal is made of because materials have different fatigue life and fatigue strengths.

Answer 2

plastics are soft and metals are hard and this actual as well as psychologically also.

Answer 3

depends on the plastic, or the metal. there are so many different plastics and metals and many different applications for each.

Just guessing, I would say plastics are in general weaker, but more resistant to fatigue cracking.