Energy-based definition of equivalent inhomogeneity for various interphase models and analysis of effective properties of particulate composites
Energy-based definition of equivalent inhomogeneity for various interphase models and analysis of effective properties of particulate composites
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DOI：
10.1016/j.compositesb.2016.03.015
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发表时间：
2016-06
影响因子：
13.1
通讯作者：
L. Nazarenko;H. Stolarski
中科院分区：
文献类型：
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作者：
L. Nazarenko;H. Stolarski
本文提出了等效非均匀性的新概念，以便使用针对无界面问题设计的技术分析具有界面相的复合材料的有效性能。用单一的等效非均匀性（结合两者的性质）取代非均匀性及其间期的基本思想类似于先前提出的发展，但等效标准完全不同。该模型基于Hill能量等效原理，采用Gurtin-Murdoch表面模型和界面层的弹簧层模型对考虑球面非均匀性的模型进行了说明。所建议的技术的有效性证明了与含球不均匀性的复合材料的最佳可用解决方案与界面的弹簧层模型非常一致。
A new concept of equivalent inhomogeneity is proposed to facilitate analysis of effective properties of composites with interphases using techniques devised for problems without interphases. The basic idea to replace the inhomogeneity and its interphase by a single equivalent inhomogeneity (combining properties of both) is akin to previously proposed developments but the criterion of equivalency is entirely different. It is based on Hill's energy equivalence principle, and is illustrated considering spherical inhomogeneity with Gurtin–Murdoch surface model and spring layer model of interphases. The validity of the suggested technique is documented by remarkably good agreement with the best available solutions for composites containing spherical inhomogeneities with spring layer model of interphase.