Modelling and simulation methods applied to coupled problems in porous-media mechanics
Modelling and simulation methods applied to coupled problems in porous-media mechanics
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DOI：
10.1007/s00419-019-01520-5
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发表时间：
2019-04
影响因子：
2.8
通讯作者：
W. Ehlers;A. Wagner
中科院分区：
文献类型：
--
作者：
W. Ehlers;A. Wagner
连续介质力学通常在固体力学、流体力学或气体动力学的框架内考虑标准单相材料的理论和计算描述。然而，材料建模的日益复杂性与用户的要求相结合，导致越来越多的兴趣在多孔介质力学，其中多孔固体材料与流体或气体孔隙内容进行了研究，在宏观尺度上。在这方面，本文回顾了地质力学和生物力学问题，包括弹性，弹塑性和粘弹性固体行为的描述的理论和数值框架部分结合电活性的属性。为此，多孔介质理论被应用于一个优雅的考虑多孔固体与孔隙流体的耦合现象，无论流体是否被视为惰性流体或流体混合物。在回顾文章的意义上，不同的计算实例来阐明多孔介质力学的可能性和挑战。
Continuum mechanics usually considers the theoretical and computational description of standard single-phasic materials in the framework of either solid mechanics, fluid mechanics or gas dynamics. However, growing complexity in material modelling combined with the request of users leads to a growing interest in porous-media mechanics, where porous solid materials with fluid or gaseous pore content are investigated on a macroscopic scale. In this regard, the present article reviews the theoretical and numerical framework for the description of geomechanical and biomechanical problems including elastic, elasto-plastic and visco-elastic solid behaviour partly combined with electro-active properties. For this purpose, the Theory of Porous Media is applied for an elegant consideration of the coupling phenomena of porous solids with pore fluids, no matter if the fluids have to be treated as inert fluids or as fluid mixtures. In the sense of a review article, different computational examples are presented to illuminate the possibilities and challenges of porous-media mechanics.