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

Turn off MathJax

Article Contents

Article Navigation > INDUSTRIAL CONSTRUCTION > 2011 > 41(9): 1-7,62

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

PDF( 0 KB)

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

FullText(HTML)

References(16)

References

Lade P V,Nelson R B,Ito Y M.Instability of Granular Materials with Nonassociated Flow[J].ASCE J.Eng.Mech.,1988,114(12):2173-2191.

[2] Poorooshasb H B.Description of Flow of Sand Using State Parameters[J].Computers and Geotechnics,1989,8(3):195-218.

[3] 郑颖人,孔亮.岩土塑性力学[M].北京: 中国建筑工业出版社,2010: 108-109.

[4] 殷有泉,曲圣年.弹－塑性耦合和广义正交法则[J].力学学报,1982,14(1):29-41.

[5] 殷宗泽,钱家欢.土工原理[M].北京: 中国水利水电出版社,2007: 245-246.

[6] 孙德安,甄文战.不同应力路径下剪切带的数值模拟[J].岩土力学,2010,31(7):2254-2258.

[7] 姚仰平,冯兴,黄祥,等.UH 模型在有限元分析中的应用[J].岩土力学,2010,31(1):237-245.

[8] 王乃东.考虑颗粒破碎的粗粒土三维本构模型及有限元实现[D].北京: 北京航空航天大学,2010.

[9] 罗汀,秦振华,姚仰平,等.UH模型切线刚度矩阵对称化及其应用[J].力学学报,2011(已录用) .

[10] Itasca Consulting Group.Fast Lagrangian Analysis of Continua in 3 Dimensions,Version 3.0,User's Mannual [M].Minneapolis:Itasca Consulting Group,Inc,2005.

[11] Matsuoka H,Yao Y P,Sun D A.The Cam-Clay Models Revised by the SMP Criterion[J].Soils and Foundations.1999,39 (1) :81-95.

[12] 罗汀,姚仰平,侯伟.土的本构关系[M].北京: 人民交通出版社,2010: 47-48.

[13] Yao Y P,Hou W,Zhou A N.UH Model: Three-Dimensional Unified Hardening Model for Overconsolidated Clays [J].Gotechnique,2009,59(5):451-469.

[14] 姚仰平,李自强,侯伟,等.基于改进伏斯列夫线的超固结土本构模型[J].水利学报,2008,39(11):1244-1250.

[15] 陈育民,徐鼎平.FLAC /FLAC3D 基础与工程实例[M].北京: 中国水利水电出版社,2009: 254-259.

[16] Nakai T,Hinokio M.A Simple Elastoplastic Model for Normally and Overconsolidated Soils with Unified Materical Parameters[J].Soils and Foundations,2 004,44(2):53-70.

Relative Articles

Supplements(0)

Cited By

Proportional views