A Method for Predicting Internal Oxidation Morphology of Unidirectional Ceramic Matrix Composites under Stressed Water Vapor Environment
A composite material and internal oxidation technology, which is applied in design optimization/simulation, chemical process analysis/design, instruments, etc., can solve problems such as the inability to predict the internal oxidation morphology of unidirectional ceramic matrix composites
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[0152] In this embodiment 1, the unidirectional ceramic matrix composite material is subjected to a method for predicting the internal oxidation morphology of the material under a stress water vapor oxidation environment at 900-1200°C, which specifically includes the following steps:
[0153] Step (1), determining the number of cracks in the unidirectional ceramic matrix composite material matrix: considering the thermal residual stress, and according to the stress borne by the matrix under the action of tensile stress, determine the change of the number of cracks in the matrix with stress;
[0154] Step (1) specifically includes the following steps:
[0155] The strength of the unidirectional ceramic matrix composite matrix has a certain dispersion, and the cracking of the matrix under stress is a random process. Assuming that the failure probability of the matrix obeys the Poisson distribution, the probability that the matrix will fail due to at least one crack under stress ...
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