Users:General FEM Analysis/Elements Reference/Beam 3D NURBS KLRod
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(Difference between revisions)
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|Linking to a material input block | |Linking to a material input block | ||
|- | |- | ||
| − | ! | + | !INT_TYPE_BEAM_3D_NURBS_KLRod |
|FULL, USER | |FULL, USER | ||
|Control of integration type. If USER, the optional Parameter GAUSS_U (and GAUSS_V) has to be defined | |Control of integration type. If USER, the optional Parameter GAUSS_U (and GAUSS_V) has to be defined | ||
| Line 33: | Line 33: | ||
|AXIS ''float1'' ''float2'' ''float3'' ''float4'' | |AXIS ''float1'' ''float2'' ''float3'' ''float4'' | ||
|Definition of the cross sectional principal axis. Second axis is perpendicual to first and tangent of the curve. ''float1'' is the position on the curve and ''float'' - ''float4'' the direction (x,y,z). Base vectors are normalized and linearly interpolated for postions inbetween the defined ones. Axes for start and end knot of the NURBS curve are mandatory. | |Definition of the cross sectional principal axis. Second axis is perpendicual to first and tangent of the curve. ''float1'' is the position on the curve and ''float'' - ''float4'' the direction (x,y,z). Base vectors are normalized and linearly interpolated for postions inbetween the defined ones. Axes for start and end knot of the NURBS curve are mandatory. | ||
| + | |- | ||
| + | |colspan="3" style="background:#efefef;"| Optional Parameters | ||
| + | |- | ||
| + | !Parameter | ||
| + | !Values, Default(*) | ||
| + | !Description | ||
| + | |- | ||
| + | !GAUSS_U | ||
| + | |GAUSS_U = ''int'' | ||
| + | |Number of Gauss point per element. Must only to be defined when INT_TYPE_BEAM_3D_NURBS_KLRod = USER | ||
|- | |- | ||
|} | |} | ||
Revision as of 10:50, 28 November 2016
Coded and tested.
Documentation will be coming soon!
Parameter Description
| Compulsory Parameters | ||
| Parameter | Values, Default(*) | Description |
|---|---|---|
| MAT | EL-MAT int | Linking to a material input block |
| INT_TYPE_BEAM_3D_NURBS_KLRod | FULL, USER | Control of integration type. If USER, the optional Parameter GAUSS_U (and GAUSS_V) has to be defined |
| CROSS SECTION | DIAMETER = float | circular cross section defined ba the diameter. A = d^2π/4, Iy = Iz = d^4π/32, It= d^4π/32 |
| HEIGHT = float WIDTH = float |
rectangular cross section defined by height and width. A = h*w, Iy = h^3*w/12 Iz = h*w^3/12 It= min(h,w)^3*max(h,w)/3 | |
| AREA = float IY = float IZ = float IT = float |
cross section defined directly | |
| AXIS | AXIS float1 float2 float3 float4 | Definition of the cross sectional principal axis. Second axis is perpendicual to first and tangent of the curve. float1 is the position on the curve and float - float4 the direction (x,y,z). Base vectors are normalized and linearly interpolated for postions inbetween the defined ones. Axes for start and end knot of the NURBS curve are mandatory. |
| Optional Parameters | ||
| Parameter | Values, Default(*) | Description |
| GAUSS_U | GAUSS_U = int | Number of Gauss point per element. Must only to be defined when INT_TYPE_BEAM_3D_NURBS_KLRod = USER |
Example of a Complete Input Block
EL-PROP 1 : BEAM_3D_NURBS_KLRod MAT= EL-MAT 1 DIAMETER=1.0 !or: HEIGHT=1.0 WIDTH=1.0 or: AREA=1.0000e+008 IY=1.0000e+008 IZ=1.0000e+008 IT=1.0000e+008 INT_TYPE_BEAM_3D_NURBS_KLRod = FULL !or: INT_TYPE_BEAM_3D_NURBS_KLRod = USER GAUSS_U = 3 ! U n1 n2 n3 AXIS 0.000000e+000 0.000000e+000 1.000000e+000 0.000000e+000 AXIS 1.000000e+000 0.000000e+000 1.000000e+000 0.000000e+000
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