›› 2005, Vol. 26 ›› Issue (4): 591-595.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on adaptive time step of consolidation problems by finite element method

NGUYEN Quang-hung, FU Shao-jun, CHEN Sheng-hong   

  1. School of Water Resources and Hydropower, Wuhan University, Wuhan 430072, China
  • Received:2003-12-19 Online:2005-04-09 Published:2013-12-19

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Abstract: The accuracy and stabilility of a problem solved by finite element method is concerned and taken into account by many researchers. In order to improve the numerical accuracy and stabilility, based on Biot’s consolidation theory the adapted time step algorithm is introduced for solving consolidation problems. The method is to estimate local and global erros of stress state and pore pressure. By the link between errors and time step length the time step adaptivity strategy has been proposed. This study can provide well understanding of development of the relation between stress and strain by time. Furthermore the study will be very useful for the design and construction of dams with earth core wall.

Key words: consolidation, finite element method, adaptive time step, error norm

CLC Number: 

  • TU 43
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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