Test description: There is a concrete cube in which hole is made for plate as well as for bar. Plate and bar is assembled. Static loading is given. Loading is displacement type. Meshing is C3D10R.
okay, I have sent you a file with the dimensions of the rods. I will check the file.
From your short description and the error message, and assuming every thing else in your model is right (a big assumption; check material properties and BCs at the very least,) your displacement load increment is too big for the procedure to converge. I would change the loading to a force (you may need an appropriate MPC at the loaded end so can load a single extra node that would also bear a sliding BC) and also change the procedure to RIKS. If you want to insist with the displacement load, change the procedure to RIKS, start with a much smaller increment, such as 1.E-5, and change the minimum increment to a even smaller number, such as 1.E-10. It seems that you have contact defined, perhaps between bar and plate. Is it a sliding contact. Do you have friction defined? If so it would inherently find difficulties in converging and definitely you would have to use force rather than displacement loading.
@Leonard Oremont:
After applying all of your suggestion, I have run the analysis again. I have changed displacement loading to force loading by applying MPC constraint. In step, I have changed "Static, General" to "Static, Riks". "Tie constraint" has been provided between plate and bar. Contact property is "frictional". Interaction has been provided between bar and concrete, and also plate and concrete which is "surface-to-surface contact (standard)".
I have attached the warning file. Please see and suggest me.
Thank you.
- Badges
- Science topic