STRESS-STRAIN RELATIONSHIP FOR STRUCTURAL LOOSE SAND BASED ON UNIFIED HARDENING MODEL

Yao Yangping; Yu Yani

doi:10.13204/j.gyjz201109006

Volume 41 Issue 9

Dec. 2014

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Yao Yangping, Yu Yani. STRESS-STRAIN RELATIONSHIP FOR STRUCTURAL LOOSE SAND BASED ON UNIFIED HARDENING MODEL[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(9): 30-34,55. doi: 10.13204/j.gyjz201109006

Citation:

Yao Yangping, Yu Yani. STRESS-STRAIN RELATIONSHIP FOR STRUCTURAL LOOSE SAND BASED ON UNIFIED HARDENING MODEL[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(9): 30-34,55. doi: 10.13204/j.gyjz201109006

Yao Yangping, Yu Yani. STRESS-STRAIN RELATIONSHIP FOR STRUCTURAL LOOSE SAND BASED ON UNIFIED HARDENING MODEL[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(9): 30-34,55. doi: 10.13204/j.gyjz201109006

Citation:

Yao Yangping, Yu Yani. STRESS-STRAIN RELATIONSHIP FOR STRUCTURAL LOOSE SAND BASED ON UNIFIED HARDENING MODEL[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(9): 30-34,55. doi: 10.13204/j.gyjz201109006

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STRESS-STRAIN RELATIONSHIP FOR STRUCTURAL LOOSE SAND BASED ON UNIFIED HARDENING MODEL

doi: 10.13204/j.gyjz201109006

1.
School of Transportation Science and Engineering,Beihang University,Beijing 100191,China

Received Date: 2010-06-06
Publish Date: 2011-09-20

Abstract

Abstract

Based on the critical state theory, a constitutive model was proposed for structural loose sand. The structural parameter was used to revise the yield function, thereby predicting the plastic deformation of loose sand more appropriately. Another parameter was used to adjust the hardening parameter and dilatancy equation, thus giving a better description of contraction behavior for loose sand. The introduction of the parameters emphasized the dependency on both density and effective principal stress of sand. Linear isotropic consolidation and critical state lines were applied in void ratio versus the power of effective mean stress space, and more accurately reflected the stressstrain behavior of sand. A comparison between model simulations and experimental results showed the validity of the proposed model.
- loose sand,
- critical state,
- structural parameter,
- hardening parameter,
- constitutive model

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References(15)

References

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