›› 2008, Vol. 29 ›› Issue (6): 1471-1476.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on lower bound method of plastic limit analysis using finite elements based on nonlinear programming

WANG Jun-xing, LI Ze   

  1. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China
  • Received:2006-09-20 Online:2008-06-10 Published:2013-07-15

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Abstract: Lower bound nonlinear programming model based on limit analysis theory is constructed through the analysis of limitation of linear programming models that are proposed by S.W.Sloan. The statically admissible stress fields for lower bound analysis are constructed by using nonlinear yield conditions; and the nonlinear programming models that can calculate overload coefficient and strength safety coefficient are established; and then the optimization strategy of nonlinear programming problem is put forward. Finally, a classic example of slope stability is given; and the results prove the correctness of the method.

Key words: plastic limit analysis, lower bound method, nonlinear programming, collapse load, factor of safety

CLC Number: 

  • TU 313
  • 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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