Abstract
In this paper, the numerical simulation of crack propagation in microstructures of Al2O3/SiCn nanocomposite ceramic tool materials is carried out by means of a micromechanical model based on the Voronoi tessellation and the cohesive element theory in order to explore the relationship between microstructure morphologies and mechanical properties. The residual stress initiated due to the mismatch of thermal expansion coefficients and elastic modulus between matrix grains and nanoparticles is considered in the simulation. The effects of microstructure types and nanoparticle volume content on the residual stress field and the fracture behavior are analyzed, respectively.
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Zhou, T., Yi, M. Microscopic cracking simulation of nanocomposite ceramic tool materials under the consideration of residual stress. Int J Adv Manuf Technol 94, 3485–3502 (2018). https://doi.org/10.1007/s00170-016-9663-4
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DOI: https://doi.org/10.1007/s00170-016-9663-4