Microstructure-based modelling of multiphase materials and complex structures
Microstructure-based modelling of multiphase materials and complex structures
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DOI：
10.1007/s00161-015-0477-7
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发表时间：
2016-09
影响因子：
2.6
通讯作者：
E. Werner;R. Wesenjak;A. Fillafer;F. Meier;C. Krempaszky
中科院分区：
文献类型：
--
作者：
E. Werner;R. Wesenjak;A. Fillafer;F. Meier;C. Krempaszky
微机械方法经常用于监测局部和全局场量及其在不同机械和/或热载荷情况下的演变。在本文中，概述了目前用于深入了解多相材料和复杂结构的变形和失效行为的重要方法。首先，回顾了表示材料微观结构的技术。通常将真实微观结构的图像数字化，或者使用自动化程序（例如 Voronoï 曲面细分）生成虚拟 2D 或 3D 微观结构，以生成晶粒并使用着色算法进行相分配。虽然前一种方法可以准确捕获现有微观结构在形态和拓扑特征方面的所有特征，但后一种方法为单个微观结构特征对局部和全局应力和应变响应的影响进行参数研究提供了可能性。介绍了这些方法的几种应用，包括多相钢的低应变和高应变行为、多相材料的失效和断裂行为以及半导体器件铝顶部金属化表面粗糙化的演变。
Micromechanical approaches are frequently employed to monitor local and global field quantities and their evolution under varying mechanical and/or thermal loading scenarios. In this contribution, an overview on important methods is given that are currently used to gain insight into the deformational and failure behaviour of multiphase materials and complex structures. First, techniques to represent material microstructures are reviewed. It is common to either digitise images of real microstructures or generate virtual 2D or 3D microstructures using automated procedures (e.g. Voronoï tessellation) for grain generation and colouring algorithms for phase assignment. While the former method allows to capture exactly all features of the microstructure at hand with respect to its morphological and topological features, the latter method opens up the possibility for parametric studies with respect to the influence of individual microstructure features on the local and global stress and strain response. Several applications of these approaches are presented, comprising low and high strain behaviour of multiphase steels, failure and fracture behaviour of multiphase materials and the evolution of surface roughening of the aluminium top metallisation of semiconductor devices.