THE THERMAL STRESSES STUDY FOR BLANKET FUEL ELEMENT CLADDING OF FUSION-FISSION HYBRID REACTOR

In the fusion--fission hybrid reactor, the alternating thermal stresses of fuelelement cladding are much more serious than steady operating fission reactor,because of the D--T periodic burning. The thermal stresses are directly proportionalto the temperature cycling region and thickness of cladding. The key to the safeand reliable operation is reasonable design of temperature cycling region.