Home / Journals / ICCES / Vol.28, No.1, 2023
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  • Open AccessOpen Access

    PROCEEDINGS

    Effects of Alignment and Dislocation on the Impact Mechanical Response of Tandem Nomex Honeycomb

    Y. F. Yin1, X. J. Zhang1,*, Y. X. Lin1
    The International Conference on Computational & Experimental Engineering and Sciences, Vol.28, No.1, pp. 1-4, 2023, DOI:10.32604/icces.2023.010481
    Abstract 1 Introduction
    Nomex honeycomb is widely used in aerospace field due to its formability and impact resistance. Tandem honeycomb structure is favored for its excellent energy absorption and controllable deformation sequence [1]. Because impact damage is inevitable in the use of sandwich structures, it is necessary to analyze the impact mechanical response of such structures. The research objects include single honeycomb and two layers align honeycomb. First, the drop weight impact test was carried out to compare the mechanical response of double-layer aligned and staggered honeycomb with that of single honeycomb. Then finite element method was used to simulate the… More >

  • Open AccessOpen Access

    PROCEEDINGS

    Damage Identification Algorithm of Composite Structure Based on Displacement Field

    Xiaoyang Shen1, Xiaojing Zhang1,*
    The International Conference on Computational & Experimental Engineering and Sciences, Vol.28, No.1, pp. 1-3, 2023, DOI:10.32604/icces.2023.010519
    Abstract 1 General Introduction
    Reliable structural health monitoring with high detection probability is very important [1]. Therefore, the method of finite element simulation was adopted. Based on the basic equation of material mechanics and stiffness degradation theory, to detect the damage of composite laminates, and further improves the intelligence of the detection process through the method of visual detection neural network.

    2 Theoretical derivation and simulation
    2.1 Equations for buckling
    In the stratified damage area, each layer bears the load independently, and the bearing capacity is determined by the stiffness there: the larger the axial stiffness, the stronger the bearing capacity… More >

  • Open AccessOpen Access

    PROCEEDINGS

    The Method of Moments for Electromagnetic Scattering Analysis Accelerated by the Polynomial Chaos Expansion in Infinite Domains

    Yujing Ma1,*, Leilei Chen2,3, Haojie Lian3,4, Zhongwang Wang2,3
    The International Conference on Computational & Experimental Engineering and Sciences, Vol.28, No.1, pp. 1-1, 2023, DOI:10.32604/icces.2023.010585
    Abstract An efficient method of moments (MoM) based on polynomial chaos expansion(PCE) is applied to quickly calculate the electromagnetic scattering problems. The triangle basic functions are used to discretize the surface integral equations. The PCE is utilized to accelerate the MoM by constructing a surrogate model for univariate and bivariate analysis[1]. The mathematical expressions of the surrogate model for the radar cross-section (RCS) are established by considering uncertain parameters such as bistatic angle, incident frequency, and dielectric constant[2,3]. By using the example of a scattering cylinder with analytical solution, it is verified that the MoM accelerated by PCE presents a considerable… More >

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