Element Control Card

1-5 Element type number (NTYPE=4 )


6-10		  Maximum number of the present local node (NEN   ) 

11-15		 Number of pressure/velocity time histories (NSOUT )


16-20		      Boundary Discharge load-time function number (LFBODY)


21-25		     Number of integration points (NINT  )


EQ.0, Ignore the element 

26-30		     Mass matrix type code, required only for the free surface (IMASS )


EQ.0, Consistent mass matrix  

EQ.1, Lumped mass matrix    

EQ.2, Discrete nodal formulation 

31-35		      Material model number  (NUMAT ) 

36-40		   Geometric nonlinear flag (NNFLAG) 

EQ.0, Deactivate geometric nonlinearity     

EQ.I, Free surface is attached to the element   

GT.10, Corner nodes flag, for 3-D, start with the two way corner node


GT.0, Nonlinear Element  

LT.0, Linear element (EQ.-10 for elements with no free surfaces)  

41-45		  Element stress/strain output flag (IOUTFL) 

EQ.0, Pressure at the integration points


EQ.1, Velocity at the integration points


EQ.2, Both pressure and velocity at the integration point


46-50		   Element system number  (ISYSTM) 

51-55 		  Unused flag


56-60 		 Stiffness matrix integration rule


GT.0,   Gauss integration is used for stiffness matrix


LT.0,   Lobbato integration is used for stiffness matrix


61-65		  Mass Matrix integration rule, 0 forces the full integration rule


GT.0,   Gauss integration is used for mass matrix


LT.0,   Lobbato integration is used for mass matrix


65-70		  Reference node  number for relative formulation (NREL )