The modelling of multi‐fracturing solids and particulate media
The modelling of multi‐fracturing solids and particulate media
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DOI：
10.1002/nme.964
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发表时间：
2004-05
影响因子：
2.9
通讯作者：
D. Owen;Y. T. Feng;E. A. D. S. Neto;Mark Cottrell;Fei Wang;F. M. A. Pires;J. Yu
中科院分区：
文献类型：
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作者：
D. Owen;Y. T. Feng;E. A. D. S. Neto;Mark Cottrell;Fei Wang;F. M. A. Pires;J. Yu
在本工作中，回顾了在涉及多个断裂和离散现象的大规模实际问题的有效建模的离散/有限元组合方法的背景下的计算策略。审议的问题包括：（1）有限单元和离散单元内的断裂准则和传播机制，以及离散化和引入断裂系统的网格自适应程序;（2）监测大量离散单元之间接触的检测程序;（3）控制接触对响应的相互作用定律;（4）并行实现;（5）其他问题，如近似不可压缩行为的单元方法和离散物体随机堆积的产生。所开发的方法的适用性说明通过选定的实际例子。版权所有© 2004年约翰威利父子有限公司。
Computational strategies in the context of combined discrete/finite element methods for effective modelling of large‐scale practical problems involving multiple fracture and discrete phenomena are reviewed in the present work. The issues considered include: (1) Fracture criteria and propagation mechanisms within both the finite and discrete elements, together with mesh adaptivity procedures for discretization and introduction of fracture systems; (2) Detection procedures for monitoring contact between large numbers of discrete elements; (3) Interaction laws governing the response of contact pairs; (4) Parallel implementation; (5) Other issues, such as element methodology for near incompressible behaviour and generation of random packing of discrete objects. The applicability of the methodology developed is illustrated through selected practical examples. Copyright © 2004 John Wiley & Sons, Ltd.