Improving the Disturbance State Constitutive Model by Considering Plastic Volumetric Strain
[1]Cui Yunliang,Xiang Pengfei,Wang Xinquan,et al.Improving the Disturbance State Constitutive Model by Considering Plastic Volumetric Strain[J].Journal of Zhengzhou University (Engineering Science),2018,39(01):47-52.[doi:10.13705/j.issn.1671-6833.2018.01.026]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
39卷
Number of periods:
2018 01
Page number:
47-52
Column:
Public date:
2018-01-20
- Title:
- Improving the Disturbance State Constitutive Model by Considering Plastic Volumetric Strain
- Keywords:
- disturbance state; plastic volumetric strain; plastic deviatoric stain; constitutive model; disturbance function
- CLC:
- -
- DOI:
- 10.13705/j.issn.1671-6833.2018.01.026
- Abstract:
- The disturded stste constitutive （DSC）model, proposed by Dwsai only condidered the affect of plastic deviatoric strain on disturbance stste, without considering the plastic volumetric strain. The disturbance function of the disturbed stste constitutive（DSC）model was improved by introducing a coupling-form disturbance variable of plastic deviatoric stain trace and plastic volumeric strain trace on the basis of original disturbance function. Triaxial consolidated undrained （CU）test, triaxial consolidated drained （CD）test and one dimensional compression test were performed on the wenzhou natural structured soft clay. The DSC constitutive model with the improved disturbance function was validated by the test datd. The validation results showed that the unimproved model predictsed a slightly higher strength of both undrained and drained test of the natural structured soft clay, and the prediction of the improved model was more accurate.
- References:
- -
- Similar References:
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Last Update:
2018-01-23