What makes the Boeing B-52 Stratofortress so long-lasting?

Two decades ago, working on the B-52 seemed like a brief assignment - not a career

B-52H Stratofortress > Air Force > Fact Sheet Display

How does an old airframe like the B-52 (last produced in 1963) overcome metal fatigue from so many take-off/landing cycles? - Quora

Boeing B-52 Stratofortress - Wikipedia

B 52 stratofortress aircraft in storage hi-res stock photography

How good is the B-52 Stratofortress? - Quora

1.0] B-52 Evolution

Why would the B-52 be upgraded with 8 engines instead of 4 more efficient engines (for maintenance purposes alone)? - Quora

Meet the B-52: The Best Bomber to Ever Fly? - 19FortyFive

B-52 Bomber Preparing To Fly Into 2050

Recently, the US Military started moving B-52s from the boneyard to a facility to see if they could be used again. What is so special about the B-52 that the military refuses

Air Force's youngest B-52 turns 50 this year > Joint Base

Boeing B-52 Stratofortress: Timeless Workhorse of the Skies - Jets