Abstract
This study presents a peridynamic modeling approach to predict damage initiation and growth in fiber-reinforced Ceramic Matrix Composites (CMC). Damage prediction is based on the critical stretch which is directly related to the strain energy release rate failure criteria. The capability of this approach is verified against benchmark solutions and experimental observations available in the literature. A new nonuniform discretization capability in peridynamics is applied to investigate crack propagation in CMCs in the presence of a fairly dense matrix, and with fine discretization of the interphase (coating) regions. In the presence of a weak interphase between the fibers and matrix, it predicts the propagation of cracks through the dense matrix while deflecting around the fibers through the interphase region.
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Hu, Y., Madenci, E., Phan, N. (2018). Peridynamic Modeling of Cracking in Ceramic Matrix Composites. In: Ambriz, R., Jaramillo, D., Plascencia, G., Nait Abdelaziz, M. (eds) Proceedings of the 17th International Conference on New Trends in Fatigue and Fracture. NT2F 2017. Springer, Cham. https://doi.org/10.1007/978-3-319-70365-7_40
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DOI: https://doi.org/10.1007/978-3-319-70365-7_40
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