****************************************************************
**                                                            **
**                   CARTILAGE PROPERTIES                     ** 
**                                                            **
****************************************************************
**** MATERIAL DEFINITION ****
**
*MATERIAL, NAME=CARTILAGE_MATERIAL
*DENSITY
     1.81E-8,
*ELASTIC, TYPE=ISO
      30,        0.45
*DAMPING, ALPHA=100.
**
*SECTION CONTROLS, NAME=CARTILAGE_MAT_CONTROL, HOURGLASS=STIFFNESS
20.0
**
******************************************************************
**** TIBIA CARTILAGE ****
******************************************************************
*NODE
   300010, 82.9589118347385, -28.5037956302000, 1151.3287645200
**
*SOLID SECTION, ELSET=CARTILAGE_TIBIA, MATERIAL=CARTILAGE_MATERIAL, CONTROLS=CARTILAGE_MAT_CONTROL
1.0,
**
*SURFACE, NAME=SURF_TIBIA_CART
CARTILAGE_TIBIA
**
*RIGID BODY, ELSET=CARTILAGE_TIBIA, REF NODE=300010
**
*ELEMENT, TYPE=MASS, ELSET=TIB_CART_MASS
300011, 300010
*ELEMENT, TYPE=ROTARYI, ELSET=TIB_CART_ROT
300012, 300010
**
*MASS, ELSET=TIB_CART_MASS
1E-5
*ROTARY INERTIA, ELSET=TIB_CART_ROT
.001, .001, .001
**
*MPC
BEAM, 300010, 10
**
******************************************************************
**** TALUS CARTILAGE ****
*********************************************************************
*NODE 
   4000010, 87.3151217404540, -26.9014951666600, 1153.91123863520
**
*SOLID SECTION, ELSET=CARTILAGE_TALUS, MATERIAL=CARTILAGE_MATERIAL, CONTROLS=CARTILAGE_MAT_CONTROL
1.0,
**
*SURFACE, NAME=SURF_TALUS_CART
CARTILAGE_TALUS
**
*RIGID BODY, ELSET=CARTILAGE_TALUS, REF NODE=4000010
**
*ELEMENT, TYPE=MASS, ELSET=TAL_CART_MASS
4000011, 4000010
*ELEMENT, TYPE=ROTARYI, ELSET=TAL_CART_ROT
4000012, 4000010
**
*MASS, ELSET=TAL_CART_MASS
1E-5
*ROTARY INERTIA, ELSET=TAL_CART_ROT
.001, .001, .001
**
*MPC
BEAM, 4000010, 20010
**