一种粗粒土非线性剪胀模型的扩展及其验证

doi:10.13722/j.cnki.jrme.2014.s2.116

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Abstract Based on hypoelasticity，three-module incremental nonlinear stress-strain relationships of a nonlinear dilatancy model for coarsed-grained soils under triaxial stress condition is generalized into a three-dimensional stress-strain relationship，and both tensor form and matrix form are given for finite element implementation. The nonlinear dilatancy model is implemented by user subroutine UMAT on ABAQUS finite-element software. The coarsed-grained soils of a rockfill dam sit is selected，conventional large scaled triaxial consolidated drained shear tests under saturated conditions with different confining pressures were calculated by ABAQUS for the coarsed-grained soils，the comparison between calculation results and tests results has been employed to validate the tensor form and matrix form and the subroutine.

Key words： soil mechanics coarsed-grained soils constitutive model finite element dilatancy ABAQUS

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	Articles by authors
	PAN Jiajun
	CHENG Zhanlin
	RAO Xibao
	CHEN Yun
	XU Han

Cite this article:

PAN Jiajun,CHENG Zhanlin,RAO Xibao, et al. A NONLINEAR DILATANCY MODELS EXTENTION AND VALIDATION FOR COARSED-GRAINED SOILS[J]. , 2014, 33(S2): 4321-4325.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.s2.116 OR https://rockmech.whrsm.ac.cn/EN/Y2014/V33/IS2/4321

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