The greatest strain is in the middle top surely? I'm no physicist btw. On the front and back sprocket the strain is distributed over the gear teeth.
Yes when I say middle top I mean the middle bit between the cassette and the chainrings. However, 10 seconds of googling suggest that's incorrect. The greatest strain is at the max angle of deflection so that would be just after the cassette or just before the chainrings, depending on the gear.
So the answer to the question is No.
Well, you lot have done for me.....
Going up a tidy hill over The Chase tonight , I snapped my sodding chain
Six miles of scooting the downhill bits, and pushing the rest, to get home
I doubt that you snapped it, the rivets probably gave way, that should be some comfort for you..........