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  • Open Access

    ARTICLE

    Integrated Discrete Cell Complexes and Finite Element Analysis for Microstructure Topology Evolution during Severe Plastic Deformation

    Siying Zhu1,#, Weijian Gao2,#, Min Yi1,2,*, Zhuhua Zhang1,2,*

    CMC-Computers, Materials & Continua, Vol.85, No.1, pp. 657-679, 2025, DOI:10.32604/cmc.2025.068242 - 29 August 2025

    Abstract Microstructure topology evolution during severe plastic deformation (SPD) is crucial for understanding and optimising the mechanical properties of metallic materials, though its prediction remains challenging. Herein, we combine discrete cell complexes (DCC), a fully discrete algebraic topology model—with finite element analysis (FEA) to simulate and analyse the microstructure topology of pure copper under SPD. Using DCC, we model the evolution of microstructure topology characterised by Betti numbers (, , ) and Euler characteristic (). This captures key changes in GBNs and topological features within representative volume elements (RVEs) containing several hundred grains during SPD-induced recrystallisation.… More >

  • Open Access

    ARTICLE

    Experimental Investigation of Particles Dynamics and Solid-Liquid Mixing Uniformity in a Stirred Tank

    Kai Yang1,2, Qinwen Yao1,2, Yingshan Li1,2, Wanchang Chen1,2, Saleh Khorasani3, Hua Wang1,2, Qingtai Xiao1,2,4,*

    FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.11, pp. 2585-2602, 2024, DOI:10.32604/fdmp.2024.050704 - 28 October 2024

    Abstract Particle suspension and deposition dynamics are significant factors affecting the level of mixing quality in solid-liquid two-phase stirring processes. In general, the ability to increase the suspension rate and minimize deposition effects is instrumental in improving the uniformity of particle mixing, accelerating the reaction of involved solid-liquid two-phase, and improving the efficiency of production operations. In this work, suspension and deposition indicator based on the Betti number and a uniformity indicator are introduced and obtained by means of image analysis. The influence of the blade type, rotation speed, blade diameter and blade bottom height on… More > Graphic Abstract

    Experimental Investigation of Particles Dynamics and Solid-Liquid Mixing Uniformity in a Stirred Tank

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