On the Design, Characterization and Simulation of Hybrid Metal-Composite Interfaces
On the Design, Characterization and Simulation of Hybrid Metal-Composite Interfaces
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DOI：
10.1007/s10443-016-9526-z
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发表时间：
2017-02-01
影响因子：
2.3
通讯作者：
Kaestner, M.
中科院分区：
文献类型：
--
作者：
Kiessling, R.;Ihlemann, J.;Kaestner, M.
多材料轻量化设计是开发创新和资源节约型产品的关键特征。在混杂复合材料的开发中，必须详细考虑连接部件之间的界面，因为它代表了失效初始化的典型位置。本文概述了金属复合材料界面的模拟工程。为此，在微观和宏观尺度上的几个设计方面的解释和方法来模拟有限元模拟中的接口的机械行为。这包括利用内聚元素和对界面的连续描述。同样，牵引分离为基础的内聚元素，即零厚度理想化的接口，概述和应用到一个示范的例子。在这些有限元模拟中，必须通过合适的材料模型来描述连接部件的本构行为。因此，非弹性材料模型在大应变的流变模型的基础上制定。
Multi-material lightweight designs are a key feature for the development of innovative and resource-efficient products. In the development of a hybrid composite, the interface between the joined components has to be considered in detail as it represents a typical location of the initialization of failure. This contribution gives an overview of the simulative engineering of metal-composite interfaces. To this end, several design aspects on the microscale and macroscale are explained and methods to model the mechanical behavior of the interface within finite element simulations. This comprises the utilization of cohesive elements with a continuum description of the interface. Likewise, traction-separation based cohesive elements, i.e. a zero-thickness idealization of the interface, are outlined and applied to a demonstration example. Within these finite element simulations, the constitutive behavior of the connected components has to be described by suitable material models. Therefore, inelastic material models at large strains are formulated based on rheological models.