FEDEASLab

General > B_matrix

B_matrix

Purpose

equilibrium matrix of structural model with 2d/3d truss and 2d frame elements

Synopsis

B = B_matrix (Model)

Description

B_MATRIX equilibrium matrix of structural model with 2d/3d truss and 2d frame elements
  B = B_MATRIX (MODEL)
  the function forms the equilibrium matrix B for all degrees of freedom (DOFs) and
  all basic forces of the structural model specified in data structure MODEL;
  this version is limited to 2d/3d truss and 2d frame elements

Cross-Reference Information

This function calls:

  • Localize returns the node coordinates and id array of element
  • ElmLenOr element length and x-axis orientation (direction cosines)
This function is called by:
  • Bbar_matrix function for determining force influence matrices of structural model
  • S_ForceMethod script for force method of structural analysis