FEDEASLab

General > Fs_matrix

Fs_matrix

Purpose

block diagonal matrix of element flexibity matrices for structural model

Synopsis

Fs = Fs_matrix (Model,ElemData,Roption)

Description

FS_MATRIX block diagonal matrix of element flexibity matrices for structural model
  FS = FS_MATRIX (MODEL,ELEMDATA,ROPTION)
  the function sets up the block diagonal matrix of element flexibility matrices FS
  for the structural model specified in data structure MODEL with element property
  information in cell array ELEMDATA;
  if ROPTION=0 the element release information is not accounted for in setting up Fs (default=1)

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
  • Animate_EventSequence generate plot sequence with location of plastic hinges for each event
  • Complete_QV complete basic force QIN and element deformation vector VE with values at releases