Large3du2v_Frm

Purpose

determine 3d frame element deformations from end displacements

Synopsis

[v,vthetaI,vthetaJ] = Large3du2v_Frm (xyz,GeomData,u)

Description

LARGE3DU2V_FRM determine 3d frame element deformations from end displacements
  [V,VTHETAI,VTHETAJ] = LARGE3DU2V_FRM(XYZ,GEOMDATA,U)
  the function determines the deformations V and
  the relative pseudo-rotation vectors VTHETAI and VTHETAJ at nodes I and J
  of a 2-node, 3d frame element with end node coordinates XYZ
  under large end node displacements U; the data structure GEOMDATA carries
  information about the joint offsets for the element

Cross-Reference Information

This function calls:

• DefGeom_3dFrm determines current length and corotational triad of 2-node, 3d frame element
• Rot2q convert normalized rotation vector to quaternion representation
• q2Rmat determine rotation matrix from normalized quaternions

• DeformShape3dFrm deformed shape of linear elastic, uniform, prismatic 3d frame element
• DeformShape3dFrm_wDispIntp deformed shape of 3d frame element with cubic polynomials
• Coro3dKinematics determine deformations and kinematic transformation matrices
• GeomTran_3dFrm kinematic matrices and deformations for a 2-node 3d frame element