Results 1 to 3 of 3

Thread: VDISP-quasi-static analysis in ABAQUS Explicit

  1. #1
    Join Date
    2009-10
    Location
    Kanpur, India
    Posts
    23

    VDISP-quasi-static analysis in ABAQUS Explicit

    Hello all,

    I use ABAQUS Explicit user subroutine VDISP to simulate pin loading in a tensile test (displacement mode) on a single edge notched plate.

    When I run the simulation, I have noticed that the displacements (that are applied to the top surface) do not propagate to the adjacent elements.

    I have used similar boundary conditions on the same plate using ABAQUS-Standard 'disp' subroutine and I obtain expected results.

    I am certain that VDISP is quite accurate. Is there something about the 'Dynamic explicit' analysis that would cause this kind of error. Does this have to the speed of deformation, or time step.

    thanks in advance for suggestions.

    Brunda

  2. #2
    Join Date
    2000-02
    Location
    Boston, USA
    Posts
    3,328
    It sounds like you are deforming the material so fast that inertial effects become large and the material deformation inhomogeneous...

    -Jorgen
    Jorgen Bergstrom, Ph.D.
    PolymerFEM Administrator

  3. #3
    Join Date
    2009-10
    Location
    Kanpur, India
    Posts
    23
    Thanks for the quick reply.

    So a small time step should probably resolve the problem eh?

    On a related note, how do we know about the inertial effects? I have seen that in .sta file, the % change is mass is of the order of e11. Is that really high?

    Brunda

Similar Threads

  1. Quasi-static analysis using ABAQUS/EXPLICIT
    By aquila652 in forum Finite Element Modeling
    Replies: 2
    Last Post: 2010-05-22, 13:38
  2. Rate of deformation in quasi-static analysis
    By avee in forum Constitutive Models
    Replies: 3
    Last Post: 2007-05-27, 12:22
  3. quasi-static
    By amar in forum Finite Element Modeling
    Replies: 3
    Last Post: 2004-08-19, 19:45
  4. quasi-static analysis results
    By amar in forum Finite Element Modeling
    Replies: 1
    Last Post: 2004-08-09, 18:12
  5. quasi-static analysis
    By amar in forum Finite Element Modeling
    Replies: 1
    Last Post: 2004-07-26, 19:30

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •