DEVELOPMENT AND IMPLEMENTATION OF UNIFIED HARDENING MODEL IN FLAC3D

Yao Yangping; Hu Hexiang; Hou Wei

doi:10.13204/j.gyjz201109001

Volume 41 Issue 9

Dec. 2014

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Yao Yangping, Hu Hexiang, Hou Wei. DEVELOPMENT AND IMPLEMENTATION OF UNIFIED HARDENING MODEL IN FLAC3D[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(9): 1-7,62. doi: 10.13204/j.gyjz201109001

Citation:

Yao Yangping, Hu Hexiang, Hou Wei. DEVELOPMENT AND IMPLEMENTATION OF UNIFIED HARDENING MODEL IN FLAC3D[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(9): 1-7,62. doi: 10.13204/j.gyjz201109001

Yao Yangping, Hu Hexiang, Hou Wei. DEVELOPMENT AND IMPLEMENTATION OF UNIFIED HARDENING MODEL IN FLAC3D[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(9): 1-7,62. doi: 10.13204/j.gyjz201109001

Citation:

Yao Yangping, Hu Hexiang, Hou Wei. DEVELOPMENT AND IMPLEMENTATION OF UNIFIED HARDENING MODEL IN FLAC3D[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(9): 1-7,62. doi: 10.13204/j.gyjz201109001

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DEVELOPMENT AND IMPLEMENTATION OF UNIFIED HARDENING MODEL IN FLAC3D

doi: 10.13204/j.gyjz201109001

1.
1. School of Transportation Science and Engineering,Beihang University,Beijing 100191,China;
2.
2. National Academician &Masters Research Office,BGI Engineering Consultants Ltd,Beijing 100038,China

Received Date: 2011-06-06
Publish Date: 2011-09-20

Abstract

Abstract

The over-consolidated unified hardening model (UH model) proposed by Yao et al can describe many characteristics of over-consolidated clays well,including stress-strain relationships,stress dilatancy,strain hardening and softening,and stress history dependency. Based on the assumption of elastic-plastic model and solution of a quadratic equation,the computational scheme of UH model in FLAC3D was derived. According to the secondary developing platform,the UH model was developed in FLAC3D with Visual C + + environment. Using that program,numerical simulations of triaxial compression,triaxial extension and plane strain tests were performed,which showed a good agreement with the analytic solution. Compared with the modified Cam-clay model,UH model had several advantages in stress dilatancy,strain softening,loading and unloading features. Finally,the advantage of using constructive models with nonassociated flow rule in FLAC3D was discussed.
- UH model,
- FLAC3D,
- secondary development,
- over-consolidated soil,
- nonassociation

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References(16)

References

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