Acoustic properties of composites containing multiple heterogeneities: micromechanics modelling
Acoustic properties of composites containing multiple heterogeneities: micromechanics modelling
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含有多种异质性的复合材料的声学特性：微观力学建模
DOI：
10.1504/ijtamm.2013.062160
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
A. Kidane
中科院分区：
文献类型：
--
作者：
Jaesang Yu;A. Kidane
研究了含有多种不同非均匀性（球、片晶、空隙、直纤维和/或波浪纤维等）的复合材料的声学特性。预测的细观力学模型使用修改的Mori-Tanaka和自洽的方法。增强体的几何形状，弹性材料的性能和不同的声学性能的每一个组成部分的有效复合材料的声学性能的影响进行了研究钨/环氧树脂，钨/EPO-TEK 301和氧化铝/EPO-TEK 301复合材料。研究了干掺气空隙率对水泥浆体材料声学性能的影响。从目前的模型得到的预测复合材料的声学性能相当好地同意与文献中的实验结果。
The acoustic properties of composites containing multiple distinct heterogeneities (spheres, platelets, voids, straight and/or wavy fibres, etc.) are predicted by a micromechanics modelling using a modified Mori-Tanaka and self-consistent methods. The influences of reinforcement geometries, elastic material properties and distinct acoustic properties of each constituent on the effective composite acoustic properties are investigated for tungsten/epoxy, tungsten/EPO-TEK 301 and alumina/EPO-TEK 301 composites. The influence of voids of dry entrained air on the acoustic properties of cements paste materials is also investigated. The predicted composite acoustic properties obtained from the current model agree reasonably well with experimental results from the literature.