Surrogate Spent Nuclear Fuel Vibration Integrity Investigation

摘要

Monotonic and cyclic tests were conducted on surrogate rods made of a Zry-4-clad tube and alumina pellets, including samples with and without epoxy bonding. The conclusions drawn based on the test results and initial data analysis are as follows: The flexural rigidity of the surrogate rod with epoxy bonding appeared to be much stronger than that of the rod without epoxy bonding for both monotonic and cyclic loading cases. Under the same loading amplitude, the surrogate rod without epoxy bond appears to have much shorter lifetime than that of rod with epoxy bond.