Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Engineering Mechanics》 2017-12
Add to Favorite Get Latest Update

COUPLED FINITE ELEMENT MATERIAL POINT METHOD AND ITS APPLICATION IN FLUID-STRUCTURE INTERACTION

CHEN Zhen-peng;SONG Yan;ZHANG Xiong;WU Bo;School of Aerospace Engineering, Tsinghua University;Chengdu Aircraft Corporation;  
In large deformation problems, the FEM will encounter mesh distortion and severe time step reduction. On the contrary, the material point method(MPM) does not suffer these difficulties. However, the accuracy and efficiency of the MPM are lower than the FEM in small deformation problems. Recently, a coupled finite element material point method(CFEMP) was proposed by our group to fully take advantages of both the FEM and MPM. In the CFEMP, the FEM and MPM are used to simulate the small and large deformation bodies, respectively. The interaction between two bodies is realized by the contact algorithm. Thus, the high accuracy and efficiency of the FEM is retained, while mesh distortion and severe time step reduction are avoided. The CFEMP is very suitable for the fluid-structure interaction problem, because the structure deforms little but the fluid deforms severely. In this article, the CFEMP is first reviewed briefly and then applied to the fluid-structure interaction problem. The results show that the CFEMP is a powerful tool for modeling fluid-structure interaction problems.
【Fund】: 国家自然科学基金项目(11672154);; 科学挑战基金项目(JCKY2016212A502)
【CateGory Index】: O353.4
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved