Usage of UCSDSAND3 and UCSDCLAY

The syntax to use the soil models in DIANA is shown below. Definition of the soil parameters for UCSDCLAY and UCSDSAND3 can be found here.

1) UCSDSAND3 model

USRMAT UCSDS3
USRVAL refShearModul, refBulkModul, frictionAng,
peakShearStra, refPress, pressDependCoe, PTAng, mType,
ca, cb, cc, cd, ce, da, db, dc,
noYieldSurf, liquefac1, liquefac2, pAtm, cohesi
USRIND 0 0

Input example:
'MATERI' 4 Name "Layer_1" YOUNG 1.96563E5 POISON 3.33534E-1 DENSIT 1.99E0 RAYLEI 0.E0 0.E0 USRMAT UCSDS3 USRVAL 7.3700E4, 1.96800E5, 3.03E1, 1.E-1, 1.01E2, 0.5, 2.53E1, 0, 0.012,3.0,0.4,9.0,0.0, 0.3,3.0,-0.3, 20, 1.0, 0.0, 101.0, 1.73 USRIND 0 0

2) UCSDCLAY model

USRMAT UCSDCL
USRVAL shearModul, poissonRatio, shearStrength, peakShearStra,
noYieldSurf
USRIND 0 0

Input example:
'MATERI' 4 Name "Layer_1" YOUNG 1.68750E5 POISON 4.0625E-1 DENSIT 1.5E0 RAYLEI 0.E0 0.E0 USRMAT UCSDCL USRVAL 6.0000E4, 4.0625E-1, 3.7E1, 0.1, 20 USRIND 0 0