›› 2000, Vol. 21 ›› Issue (3): 201-204.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Determination of plastic zones of a cavern by adaptive enriched meshes

WANG Jian-hua , ZHONG Jun- bin , CHEN Zhen-jian   

  1. Dept. of Civil Engineering, Shanghai Jiaotong University , Shanghai 200030 , China
  • Received:1999-05-24 Online:2000-09-21 Published:2016-12-26

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Abstract: There is a stress jump on the interface between the elastic and the plastic zones. Using the stress jump values as mesh refinement criteria, one can not only greatly improve the accuracy of the stresses calculated but also solve the form of plastic zone. For the specific problems of tracing the interface between the two zones, a modified mesh refinement criterion is presented. By changing several main factors that effect the shape and size of plastic zone, a lot of numerical computations are carried out. The results have shown that the criterion used in this paper is effective for determining the shape and size of the plastic zones of caverns.

Key words: solution to plastic zone , caverns , adaptive mesh refinement ;elastoplastic-plastic problems.

CLC Number: 

  • T U 457
  • 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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