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Author: search.filters.author.Zhixin Wu

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    Influence of agglomeration and waviness phenomena on torsional oscillation of MWCNTs-reinforced composite rods
    (Elsevier BV, 2025-01-01)
    Wenyuan Zhou
    ;
    Yong Huang
    ;
    Zhixin Wu
    ;
    HABIBI, MOSTAFA  
    ;
    Mohamad Habibi
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    Multi-load effect on the deformation analysis of composite nano reinforced origami sandwich panel
    (Informa UK Limited, 2024-06-19)
    Cizhen Yu
    ;
    Peng Lin
    ;
    Zhixin Wu
    ;
    Mostafa Habibi
    ;
    Wei Zhang
    Graphene origami in a copper matrix is used as a composition of core in a sandwich panel between two piezoelectric/piezomagnetic layers. More accurate modeling of the composite sandwich structure is performed using a higher-order model including thickness stretching term. Principle of virtual work is used in order to derive governing equations in terms of resultant components of force and moment as well as electromagnetic loads. The resultant components are derived in higher-order framework with accounting electric and magnetic potentials using the effective material properties of graphene origami in Halpin-Tsai and rule of mixture framework. The deformation/strain/stress components are analytically obtained in terms of thermal, mechanical, electrical, and magnetic loads as well as folding degree and content of graphene origami. Verification is performed for justification of the numerical results. A foldability dependent parametric analysis is presented to show controllability of stress, strain and deformations along the thickness direction.
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    An inspection of the metal-foam beam considering torsional dynamic responses
    (Elsevier BV, 2024-11)
    Jiaman Li
    ;
    Zhixin Wu
    ;
    Mostafa Habibi
    ;
    Ibrahim Albaijan
    Metal foam is a multifunctional material with a lower specific weight, high stiffness and compressive strength, and high energy absorption. These remarkable properties make metal foams a promising candidate for conventional materials in different industrial fields. Despite numerous researches on mechanical behavior either static or dynamic of structures made of metal foams, torsional vibration analysis of metal foam structures is still uninvestigated. In this investigation, the influence of various imperfection distribution patterns on the torsional dynamic response of metal foam beams is examined within the framework of Timoshenko-Gere's theory. Two common materials i.e. SUS304 and Aluminum foams are considered the constructive materials of structure. Moreover, three imperfection distribution patterns are taken into account. The virtual work's principle has been employed to derive the torsional governing equation of metal foam beams. Then, the derived governing equation has been solved via an analytical method. The accuracy of the employed methodology has been compared with the findings of former research in the literature. Finally, the influences of different notable parameters on the variation of natural torsional frequency have been examined and demonstrated in a group of tables and diagrams.