Home / Journals / CMES / Vol.106, No.4, 2015
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  • Open Access

    ARTICLE

    Scaled Boundary Finite Element Method for Thermoelasticity in Voided Materials

    Jan Sladek1, Vladimir Sladek1, Peter Stanak1
    CMES-Computer Modeling in Engineering & Sciences, Vol.106, No.4, pp. 229-262, 2015, DOI:10.3970/cmes.2015.106.229
    Abstract The scaled boundary finite element method (SBFEM) is presented to study thermoelastic problems in materials with voids. The SBFEM combines the main advantages of the finite element method (FEM) and the boundary element method (BEM). In this method, only the boundary is discretized with elements leading to a reduction of spatial dimension by one. It reduces computational efforts in mesh generation and CPU. In contrast to the BEM, no fundamental solution is required, which permits to analyze general boundary value problems, where the conventional BEM cannot be applied due to missing fundamental solution. The computational homogenization technique is applied for… More >

  • Open Access

    ARTICLE

    An Improved Technique to Generate RogueWaves in Random Sea

    Jinghua Wang1, S Yan1, Q.W. Ma1,2
    CMES-Computer Modeling in Engineering & Sciences, Vol.106, No.4, pp. 263-289, 2015, DOI:10.3970/cmes.2015.106.263
    Abstract This paper presents an improved technique to generate rogue (freak) waves embedded in random sea based on the approach proposed by Kribel and Alsina (2000). In this method, a part of the wave energy is focused using the temporal-spatial focusing approach to generate an extreme transient wave and the rest behaves randomly. By introducing a correction term, the improved technique removes the numerical.ly spurious fluctuations of the spectra in the existing approach. Various effects of the correction are investigated numerically by using the second-order wave theory and two existing numerical. methods based on the fully nonlinear potential theory (FNPT), including… More >

  • Open Access

    ARTICLE

    Analytical Method for Simulation of Buckling and Post-buckling Behaviour of Curved Pates

    Joo Shin Park1, Jung Kwan Seo2,3
    CMES-Computer Modeling in Engineering & Sciences, Vol.106, No.4, pp. 291-308, 2015, DOI:10.3970/cmes.2015.106.291
    Abstract Ships, ship-shaped offshore structures, land-based structures and aerospace structures typically consist of various curved plate components. It is difficult to simulate the buckling and post-buckling of curved thin and/or thick plates that have characteristics of nonlinear structural mechanics, such as nonlinear behaviour when loading is applied. The elastic post-buckling behaviour of a curved plate is very complex, and accompanied by mode changes due to the occurrence of secondary buckling behaviour. Therefore, it is very important to clarify the elastic post-buckling behaviour when subjected to axial loading. The aim of this study was to derive an analytical calculation based on the… More >

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