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

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

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

沈新普¹, 沈国晓², 陈立新³

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

收稿日期:2002-12-09 修回日期:2004-07-06 出版日期:2004-12-18 发布日期:2004-12-18
基金资助:
the Natural Science Foundation of Liaoning Province, P. R. China (2001101023)

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

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

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)

摘要/Abstract

摘要： 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.

关键词: damage, plasticity, localization, constitutive model

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

中图分类号:

O342
65C20

沈新普;沈国晓;陈立新. INVESTIGATION ON ELASTO-PLASTIC CONSTITUTIVE MODEL COUPLED WITH DAMAGE FOR LOCALIZATION PHENOMENA[J]. Applied Mathematics and Mechanics (English Edition), 2004, 25(12): 1365-1373.

SHEN Xin-pu;SHEN Guo-xiao;CHEN Li-xin . INVESTIGATION ON ELASTO-PLASTIC CONSTITUTIVE MODEL COUPLED WITH DAMAGE FOR LOCALIZATION PHENOMENA[J]. Applied Mathematics and Mechanics (English Edition), 2004, 25(12): 1365-1373.

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

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

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