A multi-scale computational method including contact for the analysis of damage in composite materials
A multi-scale computational method including contact for the analysis of damage in composite materials
复制标题
一种用于分析复合材料损伤的包括接触在内的多尺度计算方法
DOI：
10.1016/j.commatsci.2014.08.004
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发表时间：
2014
影响因子：
3.3
通讯作者：
G. Stavroulakis
中科院分区：
文献类型：
--
作者：
G. Drosopoulos;P. Wriggers;G. Stavroulakis
本文提出了一种用于复合材料研究的多尺度计算均匀化方法。一个经典的单边接触法已被纳入微观水平，本构材料之间的接触的调查。在微观尺度上，由接触-非接触条件所产生的非此即彼的决策使得问题成为非线性的。所提出的方法考虑了微观水平的接触状态的这种变化。描述了基体与周围纤维之间的脱粘及其对宏观结构的影响。此外，在分析过程中宏观载荷方向的变化，由于微观接触状态的改变，导致非线性行为。在这种情况下，位移跃变的分布也受到影响。
In this article, a multi-scale computational homogenization scheme is proposed for the study of composite materials. A classical unilateral contact law has been incorporated in the microscopic level, for the investigation of the contact between the constitutive materials. The either-or decision resulting from the contact-no contact condition in the microscopic scale, makes the problem non-linear. This change in the contact state of the microscopic level, is taken into account by the proposed approach. Debonding between the matrix and the surrounding fibers and its impact on the macroscopic structure, are depicted. In addition, a change in the direction of the macroscopic load during analysis, results in a non-linear behavior due to the alteration of the microscopic contact state. The distribution of the displacement jump is influenced in this case, as well.