One of the main contributions of this research to the field of IPCs modelling is the proposed methodology of using micro-CT images of real interpenetrating microstructure in the Finite Element Method approach when calculating the effective elastic constants and the J-integral for the interpenetrating phase composites. Additional information from own experimental research on manufacturing and characterization of IPCs is reported in Appendix as a supporting material used in the modelling. A particular attention is given to creation of numerical models for effective elastic constants and fracture parameters of IPCs based on their real microstructure obtained from computed microtomography (micro-CT) images. The problems of deformation and fracture of IPCs under quasi-static loading are addressed numerically in a set of models aiming at the determination of the fracture parameters taking into account the crack bridging mechanism. Analytical and numerical models are proposed to predict the effective elastic properties of the IPCs. The industry push for new materials and technologies provides a strong motivation for research in the fields of processing, characterisation and modelling of IPCs. transport, power and electronic industry sectors. These superior characteristics make the IPCs attractive structural and functional materials for e.g.
Compared to typical metal matrix composites (MMC) reinforced with particles or ceramic fibres, the main advantages of IPCs are: improved homogeneity, microstructure stability at elevated temperatures, increased thermal conductivity and, thankful to the interpenetrating microstructure, moderation of cracking with metallic networks. This dissertation is focused on modelling of the effective elastic and thermal properties, deformation and fracture of metal-ceramic interpenetrating phase composites (IPCs).
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