• neuru
  • New member
  • Offline
  • Registered: 03-05-2010
  • Posts: 7

Topic: a question in the analysis of CCTPlate.

in the analysis of plate problem, there are two questions:
(1) the load information in the input file
     for example:
            NodalLoad 2 loadTimeFunction 1 Components 3 -0.0025 0.0 0.0
      meas:   fx=-0.0025 fy=0.0 fz=0.0    or   fz= -0.0025  Mx=0 My=0 ?
(2) the output displacement data
     for example:
Node         360:
    dof 1   d -7.06249882e-004
    dof 2   d -1.98969099e-003
    dof 3   d  2.76966094e-003
   means: ux,uy,uz  or   w, rotx,roty
     
i am confuse with it .

some one can explain it?
thanks

2 Reply by bp

  • bp
  • Administrator
  • Offline
  • From: Prague, Czech Rep.
  • Registered: 02-03-2007
  • Posts: 1,047

Re: a question in the analysis of CCTPlate.

Hi,

this is related to the DOF ordering in individual nodes. By default, the number of DOFs per node or side and their physical meanings are determined by domain record, or it can by altered in particular node record. The components of nodal loading  as well as the values on output correspond to DOFs at specific node.
For example, for the domain type 2dMindlinPlate, the three default DOFs per node are created: w-displacement, u-rotation, and v-rotation (see also http://www.oofem.org/resources/doc/oofe … e33.html).
So the components of nodal load are w-displacement, u-rotation, and v-rotation (in this order) and DOF values printed on output correspond to these DOFs as well.

Borek

bp's Website

  • neuru
  • New member
  • Offline
  • Registered: 03-05-2010
  • Posts: 7

Re: a question in the analysis of CCTPlate.

thank you bp