Abstract
Three problems related to a nondestructive detection of matrix cracks in thin-walled ceramic matrix composite components are considered. First, the necessary background for the analysis of a cross-ply component with matrix cracks undergoing small-amplitude forced vibrations is prepared by specifying the stiffness that is affected by the presence of cracks. The second problem solved in the paper is the steady-state surface temperature rise over the ambient temperature in a vibrating component with cracks. This temperature depends on local stresses what explains the necessity in the analysis of forced vibrations. Finally, an exact solution of the problem of heat transfer in a component with matrix cracks in the central transverse layer is considered, including the transient period. The principal conclusion obtained based on numerical examples is that thermography is a feasible and reliable method capable of detecting matrix cracks in ceramic matrix composites.
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© 2001 Kluwer Academic Publishers
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Byrd, L.W., Birman, V. (2001). Nondestructive Testing of Thin-walled Ceramic Matrix Composites with Matrix Cracks Using Thermography. In: Durban, D., Givoli, D., Simmonds, J.G. (eds) Advances in the Mechanics of Plates and Shells. Solid Mechanics and its Applications, vol 88. Springer, Dordrecht. https://doi.org/10.1007/0-306-46954-5_7
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DOI: https://doi.org/10.1007/0-306-46954-5_7
Publisher Name: Springer, Dordrecht
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