# [1]朱耀庭,王瑜,孙璐,等.塑性与损伤不同耦合状态的热力学阐述[J].东南大学学报(自然科学版),2009,39(5):1065-1069.[doi:10.3969/j.issn.1001-0505.2009.05.039] 　Zhu Yaoting,Wang Yu,Sun Lu,et al.Thermodynamics formulation of different coupling conditions between damage and plasticity[J].Journal of Southeast University (Natural Science Edition),2009,39(5):1065-1069.[doi:10.3969/j.issn.1001-0505.2009.05.039] 点击复制 塑性与损伤不同耦合状态的热力学阐述() 分享到： var jiathis_config = { data_track_clickback: true };

39

2009年第5期

1065-1069

2009-09-20

## 文章信息/Info

Title:
Thermodynamics formulation of different coupling conditions between damage and plasticity

1 东南大学交通学院, 南京 210096; 2 北京交通大学交通运输学院, 北京 100044
Author(s):
1 Shool of Transportation, Southeast University, Nanjing 210096, China
2 Shool of Transportation, Beijing Jiaotong University, Beijing 100044, China

Keywords:

O346.5
DOI:
10.3969/j.issn.1001-0505.2009.05.039

Abstract:
On the basis of orthogonality condition and extremum principle within the frame of thermodynamics, the mathematical characteristics of constitutive equations and the flow rules of internal variables for different coupling conditions between damage and plasticity are formulated, and examples of application and analysis are also presented. Under the condition of homogeneous first order function, the kinetic evolution laws of internal variables are expressed by a product of a symmetrical matrix and the conjugate thermodynamic force vector under the strong coupling condition, while it is a diagonal matrix rather than a symmetrical matrix under the weak coupling condition. The flow rules for different coupling conditions are derived from the minimum free energy theorem. It is indicated that, under the strong coupling condition, only a single yield function with evolution laws exist for all internal variables, while every internal variable owns a separate yield criteria under the weak coupling condition.

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