Abstract

The paper presents a modification of the asymptotic averaging method for solving the homogenization problem of elastic properties for composite materials. The elasticity of the phase interface is taken into account. The conditions of a soft imperfect interface are considered, which account for a displacement jump on the phase boundary. A review of the interface-modeling methods in composite materials is presented. The finite element method is used for the numerical implementation of the averaging method. A model of a interface finite element is proposed. Elastic properties averaging is adapted to the presence of a discontinuity in the displacement field. Application limits of the soft imperfect interface are estimated in terms of interphase layer properties. The identification of the interface parameters using experimental data is considered. Computational experiments are conducted for dispersed-reinforced and unidirectional composite with isotropic inclusion.

中文翻译：

---

具有不完善界面的渐近平均法模拟复合材料的弹性性能

摘要

本文提出了一种渐进平均方法的改进方案，以解决复合材料弹性特性的均质化问题。考虑了相界面的弹性。考虑了软不完美界面的条件，这说明了相边界上的位移跃变。提出了复合材料中界面建模方法的综述。有限元法用于平均法的数值实现。提出了界面有限元模型。弹性特性平均适用于位移场中不连续的存在。根据相间层的特性估算软缺陷界面的应用范围。考虑使用实验数据识别接口参数。