A half-scaled large structural model for an annular structure was built, and its behaviors were tested and obtained by thermal cyclic loads. The model design and test conditions were determined to take into consideration the thermal and mechanical loads acting on the annular structure by numerical methods. Temperature profiles and strains of the flexure were measured during the test. After completion of the thermal cyclic tests, no evidence of crack initiation and propagation were identified by a dye penetration test.
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