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Modelling of Elastic-Wave Multiple Scattering in Metal-Matrix Composites

机译:金属基复合材料中弹性波多散射的建模

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Deterministic multiple scattering formulations based on Twersky's approach and the polymerisation technique are presented. These lead to full-scale simulations of elastic-wave multiple scattering in fibre-reinforced composites. It is shown that the convergence and accuracy of the composite models depend on the geometry of the composite structure and the strategy used for the polymerisation. The paper explains why the multiple scattering formulation may not converge if precautions are not taken during polymerisation. A strategy is proposed to improve convergence. Results are presented for the case of an incident harmonic SH wave impinging on a bounded Ti/SiC composite region, the plane of propagation being orthogonal to the fibres' axis.
机译:提出了基于Twersky方法和聚合技术的确定性多散射制剂。这些导致纤维增强复合材料中的弹性波多散射的全尺寸模拟。结果表明,复合模型的收敛性和准确性取决于复合结构的几何形状和用于聚合的策略。本文解释了为什么如果在聚合过程中未采用预防措施,则多个散射制剂可能不会收敛。提出了一种策略来改善收敛性。出于撞击有界Ti / SiC复合区域的事件谐波波的情况,传播平面与纤维的轴线正交。

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