Recent content by Jlog50

Hello all, I am using Abaqus 6.10 and have 3GB on my machine, I have 32bit Windows XP. Reading through the manuals, I just wanted to make sure I understood this correctly.. Is 2GB's the maximum memory I can allocate to an analysis for a machine with up to 8GB (this is what the manual says but...

I am trying to find out more information regarding elastic-perfectly plastic material models. I am considering the FE analysis of metals and looking can I apply a elastic-perfectly plastic material model to my analysis? Thanks.

Create a reference point (RP) and tie the rigid part to the reference point. Then apply the rotation BC's to the reference point. Hope the helps.

Thanks for your input Stig. I have heard that linear elements are better suited for contact problems? Do you have any thoughts on this? Thanks

Hello all, I am currently modelling 3D hertz contact problem in Abaqus. The manual does not give much advice on contact element types for contact problems. The contact is finite sliding (likely to be more than small sliding), penalty tangential behavious (COF = 0.1), "Hard" normal contact...

Hello all, I am trying to find the stress-strain data for Cobalt-Chrome 28. I have found th ASTM standard ASTM F75 - 07 Standard Specification for Cobalt-28 Chromium-6 Molybdenum Alloy Castings and Casting Alloy for Surgical Implants (UNS R30075). My organisation does not currently have...

I am also looking into the area of work. You could model your materials as elastic-plastic, run a load step and relax step (repeat as many times as required), then assess the stresses. I look forward to input from others on this. All the best

Hi corus, I seem to remember in ANSYS there was an option to view elemental and nodal solutions (like shown in this link below). I can't seem to see this type of option in ABAQUS, where can I find this? http://courses.cit.cornell.edu/ansys/plate/step08.htm Thanks again

Hi all, Yes I mean cubes. thanks for your advice I will try 2nd order tets and look at the accuracy of results. Thanks.

Hi all, I can produce a report of the nodal and elemental stresses, but is there anyway of plotting a viewpoint plot of the nodal and elemental solution at a time increment. I would really appreciate some help on this. Thanks.

The only reason I preferred the hex elements, is because I am looking at a ball in socket joint which is round surfaces, therefore I felt hex may be a better option than tets?

Hello all, I am trying to learn more about remeshing techniques in FEA. I am using ABAQUS, and the programme does not seem to allow adaptive remeshing (i.e. mesh refinement) for 3D models using hex elements. Is this the same case for all FE software? If so, anyone know why this is? Is it a...

Optimus2007, yes, sometimes edges look flat even though you know that are perfectly round geometrically. Fabi0, when using penatly method to define tangential friction between surfaces, you mention you this allows for some overclosure. Can this be overcome by selecting to remove overclosure in...

When trying to run a Quasi static analysis, I get the following error message: Machine precision requires a time step greater than 2.22000e-16 When I run this problem as a static and dynamic implicit analysis it seems to run without any errors Anyone know how to solve this. thanks.

Is this just a visual problem? Are you results strange? You could try to remove overclosure in the interaction module.