This paper presents an adaptive coupling approach between meshless Smoothed Point Interpolation Methods (SPIMs) and the Finite Element Method (FEM) for the physically nonlinear analysis of quasi-brittle media. The nonlinear behaviour is represented by scalar damage and smeared-crack models. In the proposed adaptive coupling approach, the domain is initially discretised with a relatively coarse FEM mesh. During the solution process, FEM patches are replaced by meshless discretisations according to certain selection criteria. Refinement is also considered.

中文翻译：

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用于分析准脆性介质的 SPIM-FEM 自适应耦合方法

本文提出了一种无网格平滑点插值法 (SPIM) 和有限元法 (FEM) 之间的自适应耦合方法，用于准脆性介质的物理非线性分析。非线性行为由标量损伤和弥散裂纹模型表示。在所提出的自适应耦合方法中，域最初使用相对粗糙的有限元网格进行离散化。在求解过程中，根据某些选择标准，FEM 面片被无网格离散化所取代。细化也在考虑之中。