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A boundary element methodology for viscoelastic analysis: Part Ⅱ without cells

机译:粘弹性分析的边界元方法:第二部分,无孔

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摘要

In this study Kelvin and Boltzmann viscoelastic models are implemented in a two-dimensional boundary element atmosphere. This general methodology is based on differential constitutive relations for viscoelasticity, avoiding the use of relaxation functions. In this part of the study, important algebraic operations are introduced into the formulation allowing analysing viscoelastic problems without using internal cells. This improvement is very important to model infinite and semi-infinite regions. The formulation is verified comparing the numerical results with analytical solutions. An extension of the formulation to consider soil-structure interaction is presented in order to demonstrate the vast applicability of the technique.
机译:在这项研究中,开尔文和玻尔兹曼的粘弹性模型是在二维边界元大气中实现的。该通用方法基于粘弹性的微分本构关系,避免了使用松弛函数。在这一部分的研究中,重要的代数运算被引入到公式中,从而无需使用内部单元就可以分析粘弹性问题。这种改进对于建模无限和半无限区域非常重要。通过将数值结果与解析解进行比较来验证该公式。为了说明该技术的广泛适用性,提出了考虑土壤-结构相互作用的配方扩展。

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