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Evaluation of Structural Integrity of a Hypersonic Combustor Using Thermal-Structural Coupled Analysis
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DOI：10.3795/KSME-A.2026.50.3.155.png)
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Abstract
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This study evaluates the structural integrity of a hypersonic combustor sector rig through thermal-structural coupled analysis. Because hypersonic engines operate under extreme temperatures and temperature gradients, assessing the structural integrity based on the internal thermal environment in ground environments before designing an actual aircraft is essential. To achieve this, thermal-structural coupled analysis was conducted following a simulation of the thermal test environment using finite element analysis. The von-Mises stress was confirmed to have exceeded the yield strength at the same location as the weld on the lower plate, where failure occurred in the actual ground test environment. A reinforcement design model for the combustor sector rig was then proposed, and an analysis was performed using the same methodology. The results indicated that the von-Mises stress was within the yield strength, thus confirming the structural integrity of the reinforcement design model.
Keywords:
Hypersonic Combustor
Structural Integrity
Thermal-Structural Coupled Analysis
Finite Element Analysis
Conjugate Heat Transfer Analysis
Journal
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IF:
0.2
Papers:
87
Citations:
308
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Cited Papers