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Effective elastic properties of sintered materials with branched cracks

机译：分支裂缝的烧结材料的有效弹性性能

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The aim of work is analysis of sintered materials with branched cracks growing from the voids situated at corners of fibers. The material is modelled as a two-dimensional linear-elastic structure using the boundary element method (BEM). The materials without voids and with voids having different shapes are considered. The influence of lengths of cracks and shapes of voids on stress intensity factors (SIF) and effective elastic properties (the Young modulus and the Poisson ratio) are studied. The overall properties of the sintered materials are determined by considering the representative volume element (RVE) with large number of branched cracks. The sensitivity of effective elastic properties on boundary conditions imposed on the RVE is studied.
机译：工作的目的是分析烧结材料，分支裂缝从位于纤维拐角处的空隙中生长。使用边界元法（BEM），该材料被建模为二维线性弹性结构。考虑没有空隙和具有不同形状的空隙的材料。研究了裂缝长度对应力强度因子（SIF）和有效弹性性能（幼年模量和泊松比）的影响。通过考虑具有大量分支裂缝的代表性体积元素（RVE）来确定烧结材料的整体性质。研究了有效弹性特性对普照施加的边界条件的敏感性。

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