ABAQUS

I have been told about "Spin Softening" option for rotating cylinders in Ansys but did not really understand how/what/why. I have gone thru Ansys documentation and it appears that the centrifugal loads are applied to the deformed configuration if the Spin Softening option is selected. Does Abaqus have a similar option ?

Now what the "Spin Softening" is meant to do is apply a centrifugal force:

F(r) = density*(r+u)*speed^2

I am currently simulation arc welding process. i have performed plate butt welding using abaqus software. Dflux subroutine was used and the heat source model i used is goldak double ellipsoidal model.

Now i want to apply this technique to the welding of pipes, but currently i am having difficulty with the nodal coordinates. I have defined my glodal CS to cylindrical coordinate system in part and assembly defintion. But after generating the mesh the input file contain nodal coordinates in cartesian coordinates.

Hi All,

I would like to use Abaqus to model the viscoelastic material behaviour of a polymer.

I have material data from a simple uniaxial creep experiment (nominal strain vs time). I tried to use the viscoelastic material model in Abaqus. I am a bit confused as to how I need to enter my data (what format).

The manual says I have to specify the normalized bulkand normalized shear compliance.

Dear Abaqus Users,First of all, I want to clarify that I am a beginner in Abaqus (only few months) and new in iMechanica.I have been modeling an excavation in Abaqus/CAE. I am using several layers of soils which have been modeled using Mohr-Coulomb model, the wall as an elastic material. Both the wall and the soils were modeled with 2D solid elements (plane strain).I have been facing with lots of problem with the interaction of the first layer and the wall, "UNCONVERGED MOHR-COULOMB PLASTICITY" in the GEOSTATIC STEP!!!!.

I encounter a big challenge now.

I wanna use mohr-coulomb criterion to simulate the indentation of BMGs in ABAQUS.However, there are many parameters confusing me.

We know the mohr-coulomb can be written as:

τc=k0-ασn

where τc is the shear stress on the slip plane at yielding, k0 and α are constans and σn is the stress component in the direciton normal to the slip plane.

Hello everyone:

1. I have built a FEM model 2D plane strain using ABAQUS/Standard (CPE4R) elements,

2. I am modeling the contact between a cylinder and a plate in 2D.

3. The Cylinder material is given is ELASTIC ISOTROPIC material with no plasticit E=310 GPa

4. The plate is with a Ramberg-Osgood plasticity with a Young's modulus E=210 GPa.

5. The mesh at the the contact point is VERY refined element characteristic length is about 1 micron. (My model units are (mm,N,sec)).