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1-5 Element type number (NTYPE=2 )
6-10 Maximum number of the present local node (NEN )
11-15 Number of stress/strain time histories (NSOUT )
16-20 Body force load-time function number (LFBODY)
21-25 Number of integration points (NINT )
EQ.0, Ignore the element
26-30 Mass matrix type code (IMASS )
EQ.0, Consistent mass matrix
EQ.1, Lumped mass matrix
EQ.2, No mass matrix
31-35 Material model number (NUMAT )
36-40 Geometric nonlinear flag (NNFLAG)
EQ.0, Deactivate geometric nonlinearity
EQ.1, Activate geometric nonlinearity
41-45 Element stress/strain output flag (IOUTFL)
EQ.0, Transformed stress at the integration points
EQ.1, Transformed strain at the integration points
EQ.2, Both stress and strain at the integration point
46-50 Element system number (ISYSTM)
51-55 Element type flag (ITFLAG)
EQ.1, Doubly curved shell element, 5 Ds.o.f per node, local rotations
EQ.2, Doubly curved shell element, 6 Ds.o.f per node, global rotations
EQ.3, Plane stress shell element
EQ.4, Plane strain shell element
EQ.5, Axisymmetric shell element, (revolution shell)
GT.10, Force the fiber direction to be normal to the midplane
GT.20, Force one fiber direction for the element normal to the midplane
56-60 Four digits code to indicate integration rules
GT.0, Gauss integration is used for stiffness matrix
LT.0, Lobbato integration is used for stiffness matrix
Digit.1 The bending component rule
Digit.2 The transverse shear component rule
Digit.3 The membrane normal component rule
Digit.4 The membrane shear component rule, ignored in 2-D shells
61-65 Two digits code to indicate integration rules
GT.0, Gauss integration is used for mass matrix
LT.0, Lobbato integration is used for mass matrix
Digit.1 The mass matrix integration rule
EQ.0, The full integration rule
Digit.2 The thickness integration rule
66-70 Tensionless elastic foundation code
EQ.0, Disable elastic foundation
EQ.1, Enable elastic foundation, nonlinear damping
EQ.2, Enable elastic foundation, linear damping
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Note that when coordinates are updated, ITFLAG should not be 1 and special attention has to be paid to the drilling DOF because it seriously affect convergence in this case.

**Next:** Element Generation Card **Up:** Degenerated Shell Element **Previous:** Degenerated Shell Element *A. Zeiny*

*2000-09-06*