spin

Purpose

determine the spin tensor of a vector

Synopsis

S = spin(u)

Description

SPIN determine the spin tensor of a vector
  S = SPIN (U)
  the function determines the spin tensor S of a vector U with three components

Cross-Reference Information

This function calls:

• Coro3dKinematics determine deformations and kinematic transformation matrices
• GeomTran_QuadPlate kinematic matrices and local displacements for a quadrilateral plate element
• GeomTran_TriPlate kinematic matrices and local displacements for a triangular plate element
• TranNodeQuat transforms node quaternions and moments to rotations and moments
• kg_3dFrm geometric stiffness matrix for 2-node 3d frame element different options
• kg_QuadPlate geometric stiffness matrix for quadrilateral plate element for different options
• kg_TriPlate geometric stiffness matrix for triangular plate element for different options
• q2Rmat determine rotation matrix from normalized quaternions