Users:General FEM Analysis/Elements Reference/Beam 3D NURBS KLRod

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|Linking to a material input block
 
|Linking to a material input block
 
|-
 
|-
!INT_TYPE_NURBS_BREP_BEAM
+
!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
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|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.
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|-
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|colspan="3" style="background:#efefef;"| Optional Parameters
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|-
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!Parameter
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!Values, Default(*)
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!Description
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|-
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!GAUSS_U
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|GAUSS_U = ''int''
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|Number of Gauss point per element. Must only to be defined when INT_TYPE_BEAM_3D_NURBS_KLRod = USER
 
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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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