Application of a coupled Eulerian–Lagrangian method to simulate interactions between deformable composite structures and compressible multiphase flow
Application of a coupled Eulerian–Lagrangian method to simulate interactions between deformable composite structures and compressible multiphase flow
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DOI：
10.1002/nme.2667
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发表时间：
2009-12
影响因子：
2.9
通讯作者：
W. Xie;Zhanke Liu;Y. L. Young
中科院分区：
文献类型：
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作者：
W. Xie;Zhanke Liu;Y. L. Young
可变形复合材料结构与可压缩多相流之间的相互作用在许多海洋/潜艇问题中是常见的。近年来，复合材料结构在船舶工业（例如推进系统、船体、海洋平台、海洋涡轮机等）中的应用引起了越来越多的兴趣，以利用其高刚度重量比和强度重量比以及高抗冲击/抗冲击特性。因此，对复合材料结构在动载荷作用下的性能进行评估是非常重要的。本文提出了一种欧拉-拉格朗日耦合数值方法，用于模拟可变形复合材料结构在冲击和爆炸载荷作用下的二维（2D）或轴对称响应。该方法耦合欧拉可压缩多相流体求解器与一般拉格朗日固体求解器使用接口捕获方法，并验证分析，数值和实验结果。一个二维的案例研究显示了水下爆炸下的三层复合材料结构与夹紧端。讨论了二维流固耦合效应对复合材料结构与可压缩多相流瞬态响应的重要性。版权所有© 2009约翰威利父子有限公司。
Interactions between deformable composite structures and compressible multiphase flow are common for many marine/submarine problems. Recently, there has been an increased interest in the application of composite structures in marine industry (e.g. propulsion system, ship hulls, marine platforms, marine turbines, etc) to take advantage their high stiffness to weight and strength to weight ratios, and high impact/shock resistance characteristics. It is therefore important to evaluate the performance of composite structures subject to dynamic loads. In this paper, a coupled Eulerian–Lagrangian numerical method is proposed to model the two‐dimensional (2D) or axisymmetric response of deformable composite structures subject to shock and blast loads. The method couples an Eulerian compressible multiphase fluid solver with a general Lagrangian solid solver using an interface capturing method, and is validated using analytical, numerical, and experimental results. A 2D case study is shown for an underwater explosion beneath a three‐layered composite structure with clamped ends. The importance of 2D fluid–structure interaction effects on the transient response between composite structures and compressible multiphase flow is discussed. Copyright © 2009 John Wiley & Sons, Ltd.