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An anisotropic linear elastic boundary element formulation for masonry wall analysis

机译:砌体墙分析的各向异性线性弹性边界元公式

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This work presents an application of a Boundary Element Method (BEM) formulation for anisotropic body analysis using isotropic fundamental solution. The anisotropy is considered by expressing a residual elastic tensor as the difference of the anisotropic and isotropic elastic tensors. Internal variables and cell discretization of the domain are considered. Masonry is a composite material consisting of bricks (masonry units), mortar and the bond between them and it is necessary to take account of anisotropy in this type of structure. The paper presents the formulation, the elastic tensor of the anisotropic medium properties and the algebraic procedure. Two examples are shown to validate the formulation and good agreement was obtained when comparing analytical and numerical results. Two further examples in which masonry walls were simulated, are used to demonstrate that the presented formulation shows close agreement between BE numerical results and different Finite Element (FE) models.
机译:这项工作介绍了边界元方法(BEM)公式在使用各向同性基本溶液进行各向异性体分析中的应用。通过将残余弹性张量表示为各向异性和各向同性弹性张量之差来考虑各向异性。考虑域的内部变量和单元离散化。砌体是一种由砖(砌体单元),灰浆以及它们之间的结合物组成的复合材料,在这种类型的结构中必须考虑到各向异性。本文介绍了各向异性介质特性的公式,弹性张量和代数过程。给出了两个实例来验证配方,并在比较分析结果和数值结果时获得了良好的一致性。使用两个另外的实例来模拟砌体墙,以证明所提出的公式显示出BE数值结果与不同的有限元(FE)模型之间的紧密一致性。

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