Users:General FEM Analysis/Elements Reference/NURBS BRep Point

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Contents

General Description

Element Type

  • This element provides the geometric description of a point on a NURBS patch
  • used for coupling, supports and loads

Degrees of Freedom

The element uses the degrees of freedom of the corresponding NURBS patch(es).

Parameter Description

Compulsory Parameters
Parameter Values, Default(*) Description
BREP_TYPE COUPLING_DISP
COUPLING_ROT
COUPLING_DISP_ROT
NO_COUPLING
SUPPORT
SUPPORT_ROT
CLAMPED_SUPPORT
CONNECT_DISP
coupling of displacements
coupling of rotations
coupling of displacements and rotations
no coupling
blocking of the respective displacements
blocking of the rotational degree of freedom, if existing (mainly for BEAM_3D_NURBS_KLRod)
clamped, movable support
pulling two points together (not yet tested)
BL_FACTOR_DISP float penalty factor for displacements. Youngs's modulus x 100 recommended
BL_FACTOR_ROT float penalty factor for rotations. Youngs's modulus x 100 recommended
Optional Parameters
Parameter Values, Default(*) Description
NITSCHE USER, AUTO, NONE not yet implemented


Example of a Complete Input Block

EL-PROP 1 : NURBS_BREP_POINT
  BL_FACTOR_DISP = 1e5
  BL_FACTOR_ROT = 1e5
  BREP_TYPE = COUPLING_DISP_ROT

Element Loading

The Beam_3D_NURBS_KLRod element is able to carry the following loads:

  • dead load
  • snow load
  • pressure load
  • moment

Benchmarks

No benchmark file in the Carat++-repository is yet defined.

References





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