November 5-9, 2017
This presentation will summarize some current research performed at LCTS on CMCs imaging and image-based modeling. Several aspects of SiC fiber-reinforced non-oxide CMCs production and use are envisaged. First, processing by chemical vapor infiltration is addressed through a series of modeling tools allowing the prediction of infiltration gradients as a function of the processing parameters and of the fibrous architecture. Second, the self-healing capability of multiphase, boron- and silicon-containing matrices is modeled through the use of a specific image-based method. Third, the high-temperature mechanical behavior of these materials is investigated by a thorough analysis of time series of X-ray µ-CT scans, followed by a virtual material reconstruction and a posterior FEM analysis.
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Gerard L. Vignoles, "Image analysis, synthesis and image-based modeling of ceramic-matrix composites" in "Advanced Ceramic Matrix Composites: Science and Technology of Materials, Design, Applications, Performance and Integration", Yutaka Kagawa, Tokyo University of Technology, Japan Dongming Zhu, NASA Glenn Research Center, USA Ram Darolia, GE Aviation (retired), USA Rishi Raj, University of Colorado, Boulder, USA Eds, ECI Symposium Series, (2017). https://dc.engconfintl.org/acmc/41