Influence of asymptotically-limiting micromechanical properties on the effective behaviour of fibre-supported composite materials

Influence of asymptotically-limiting micromechanical properties on the effective behaviour of fibre-supported composite materials
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渐进限制微机械性能对纤维支撑复合材料有效行为的影响

DOI:
10.1007/s10665-022-10226-7
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发表时间:
2022
影响因子:
1.3
通讯作者:
Doman E
Doman E
中科院分区:
工程技术4区
文献类型:
--
作者:
Doman E

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相似文献

通过渐近均匀化方法研究了细长纤维支撑复合材料体的宏观拉伸行为。一系列的半解析三维模型的线弹性纤维增强材料下极端的,但现实的,限制微尺度力学性能的推导,并使用COMSOL Multiphysics实现。调查的关键限制的情况下,涉及不可压缩性的一个组件材料,和那些组件材料的剪切模量存在显着差异的复合材料体内。观察到的有效的宏观尺度之间的属性从标准模型,根据已发表的文献,和那些从这里得到的微观力学极限行为的模型。当使用这种模型来优化复合材料的材料性能时,这种差异具有重要意义。
The macroscale tensile behaviour of slender fibre-supported composite bodies is examined via an asymptotic homogenisation approach. A series of semi-analytic three-dimensional models for linearly elastic fibre-reinforced materials under extreme, but realistic, limiting microscale mechanical properties are derived, and implemented using COMSOL Multiphysics. The key limits investigated are cases involving incompressibility of one component material, and those where dramatic differences in the shear moduli of the component materials exist within the composite body. Discrepancies are observed between the effective macroscale properties obtained from a standard model, based on the published literature, and those obtained from the models of micromechanical limiting behaviours derived here. Such discrepancies have significant implications when using such models to optimise the material properties of composite materials.
两相和混合纳米复合材料机械性能的测定:实验测定和多尺度建模
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发表时间: 2021
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