Bounding Cam Clay

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This command is used to construct a multi-dimensional bounding surface Cam Clay material object after Borja et al. (2001).

nDMaterial BoundingCamClay $matTag $massDensity $C $bulkMod $OCR $mu_o $alpha $lambda $h $m

$matTag	integer tag identifying material
$massDensity	mass density
$C	ellipsoidal axis ratio
$bulkMod	initial bulk modulus
$OCR	overconsolidation ratio
$mu_o	elastic shear modulus
$alpha	pressure-dependent parameter
$lambda	soil compressibility index for virgin loading
$h	hardening parameter
$m	hardening parameter

The material formulations for the BoundingCamClay object are "ThreeDimensional" and "PlaneStrain"

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NOTES:

USAGE EXAMPLES:

REFERENCES:

Borja, R.I., Lin, C.-H., and Montans, F.J. (2001) 'Cam-Clay plasticity, Part IV: Implicit integration of anisotropic bounding surface model with nonlinear hyperelasticity and ellipsoidal loading function' Computer Methods in Applied Mechanics and Engineering. 190(26), 3293-3323, doi: 10.1016/S0045-7825(00)00301-7.

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Code Developed by: Chris McGann & Pedro Arduino, at the University of Washington

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