Applied Mathematics and Mechanics (English Edition) ›› 2004, Vol. 25 ›› Issue (12): 1365-1373.

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INVESTIGATION ON ELASTO-PLASTIC CONSTITUTIVE MODEL COUPLED WITH DAMAGE FOR LOCALIZATION PHENOMENA

SHEN Xin-pu1, SHEN Guo-xiao2, CHEN Li-xin 3   

  1. 1. College of Architectural Engineering, Shenyang University of Technology, Shenyang 110023, P. R. China;
    2. Department of Applied Sciences, Taiyuan Institute of Heavy Machine, Taiyuan 030024, P. R. China;
    3. Energy Center for Coal-Bedded Methane, Northeastern Bureau of Coal Geology, Shenyang 110035, P. R. China
  • Received:2002-12-09 Revised:2004-07-06 Online:2004-12-18 Published:2004-12-18
  • Supported by:

    the Natural Science Foundation of Liaoning Province, P. R. China (2001101023)

Abstract: On the basis of existing plasticity-based damage model for plasticity coupled with damage for localization analysis, constitutive parameter identification was carried out through a series of numerical tests at local level.And then improvements were made on the expressions of the evolution laws of damage. Strain localization phenomena were simulated with a typical double-notched specimen under tensions. Numerical results indicate the validity of the proposed theory.

Key words: damage, plasticity, localization, constitutive model

2010 MSC Number: 

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