教師資料查詢 | 類別: 會議論文 | 教師: 王建凱 Chien-Kai Wang (瀏覽個人網頁)

標題:Application of Finite Element Package in the Platform Development for Fluid-Structure Interaction Analysis
學年104
學期2
發表日期2016/07/24
作品名稱Application of Finite Element Package in the Platform Development for Fluid-Structure Interaction Analysis
作品名稱(其他語言)
著者Chang-Min Tsai; Chia-I Teng; Chien-Kai Wang
作品所屬單位
出版者
會議名稱The 12th World Congress on Computational Mechanics & The 6th Asia-Pacific Congress on Computational Mechanics (WCCM XII & APCOM VI)
會議地點South Korea, Seoul
摘要In the past, most of the fluid-structure interaction researches are concerned with structures of simple shapes or linear elastic materials because analysis programs for such structures are easy to be implemented or available as commercial packages. Little attention has been paid to fluid-structure interaction of complex structural shapes and nonlinear material properties. However, by linking finite element (FE) packages and fluid-structural interaction analysis programs, these types of interaction problems can be easily solved. Peskin’s immersed boundary (IB) method is traditionally used for finding interaction forces between fluids and solid materials along the interface among them. In this study, we carry out fluid-structure interaction analysis by integrating the FE package ABAQUS and the IB method as a research platform. Here, finite element formulations are implemented via ABAQUS to solve the large deformation problems for polymer materials in liquid by introducing fluid-solid interaction forces across the immersed boundaries of the materials through the IB method incorporated in this platform.

The main themes of this research include the formulations of mechanics which embrace conservation equations, kinematics descriptions and computing algorithms especially developed for elaborating fluid-solid interaction modeling. The concept of the fluid-solid finite element formulations in this research is an adaptation of Peskin’s IB method. In this research presentation, we are further proposing that fluid-solid interaction forces acting on the neighboring fluid and solid particles are naturally action and reaction to each other satisfying Newton’s third law. For boundary value problems in solid mechanics, we consider a hyperelastic material model with the Neo-Hookean material description including nonlinear material behaviors and large shape changes for an isotropic solid to understand mechanical responses of soft materials surrounded by fluids. For model problems of viscous incompressible fluid in fluid dynamics, the Navier-Stoke equations of the incompressible Newtonian fluids are utilized by introducing the finite difference operators and subjecting proper initial and boundary conditions. Finally, we anticipate that this technique will open doors for understanding more physics related to fluid-structure interaction such as physiological states of deformed biological specimens under environmental loadings in liquid.
關鍵字Finite element method of solid mechanics, Computational fluid mechanics, Fluid-structure interaction, Soft materials, Nonlinear elasticity
語言英文(美國)
收錄於
會議性質國際
校內研討會地點
研討會時間20160724~20160729
通訊作者Chien-Kai Wang
國別韓國
公開徵稿
出版型式
出處The 12th World Congress on Computational Mechanics & The 6th Asia-Pacific Congress on Computational Mechanics
相關連結
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