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Validation of Integrity Control on CMC Heat Shingle
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English
Abstract
Within phase 1 of an ESA supported study an integrity control concept for CMC manufactured structures has been created. Specially adapted design criteria have been set up and non-destructive inspection (NDI) methods have been considered in order to detect defects before these might cause catastrophic failures.
Within phase II of the study particular attention has been focused on a typical reference thermostructural subcomponent, namely a C/SiC heat shingle.
Several shingles have been produced, two of them were investigated by verification tests: an acoustic noise test, thermomechanical cycles and a pressure test up to rupture.
Finally, different non-destructive inspection (NDI)-methods and micrographic analyses have been applied. These are in good correspondence with analysis predictions and give additional knowledge about the type of failures in the ruptured areas.
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Citation
Trabandt, U. and Becker, W., "Validation of Integrity Control on CMC Heat Shingle," SAE Technical Paper 951619, 1995, https://doi.org/10.4271/951619.Also In
References
- Becker, W. Helwig, G. Micromechanical Optimization of the Macromechanical Performance of Ceramic Matrix Composites Proceeding of the 6th European Conference on Composite Materials - High Temperature Ceramic Matrix Composites Bordeaux 20th - 24th September 1993
- Trabandt, U. Becker, W. Kienzler, J. Schmidt, T. Design of Hot Structures of Short Cycle Manufactured CMC Proceeding of the 6th European Conference on Composite Materials - High Temperature Ceramic Matrix Composites Bordeaux 20th - 24th September 1993
- Trabandt, U. Schmidt, Th. Becker, W. others Integrity Control for High Temperature Structural Applications, Phase II Final Report. Prepared for ESA Contract No. 8807/90/NL/PP(SC) February 1995