research

I have no mechanics background so be gentle. Looking for advice on how to approach this problem:

I have a long, slender, straight beam that is then bent into a curve using wire rope as a tension element between either end. Very similar to an archery bow.

Hi all,

How to perform post-buckling analysis using ABAQUS correctly?

I have obtained an eigenvalue from a linear analysis using BUCKLE command. The shape from mode 1 is good (tally with the physical experiment).

However, the result from the post-buckling analysis (using IMPERFECTION command and RIKS analysis) has not produced the buckling shape like the mode 1 from the linear analysis.

If you all have any suggestion, please share it with me. Greatly need it.

Thanks,

Wanbot 

Hi,

Can anyone please tell me the constitutive or the 'C' matrix  for a linear viscoelastic material model (with no relaxation in bulk)? I have been using the one outlined in the Computaional Mechanics book by Simo and Taylor, but I feel that ANSYS is using a different matrix as my results are different from ANSYS. I could not find details about the 'C' matrix for a viscoelastic material anywhere else. Any links too might be helpful.

Thanks,

Shriram

 --------------------------------------

Research Assistant

Hi,

     I am trying to model a piezo disc bonded to a steel plate for lamb wave simulation. I am currently modeling the piezos as rectangular with nodes coincident with the plate nodes and just coupling them. I would like to do that with a circular geometry for the piezos, but for that I need to define nodes in the disc that coincide with the plate nodes. How can I do that? Can I define my own node locations in a volume for meshing? Thanks in advance for your help.

Muhammad Haroon

Hi all friends:
   I am an ABAQUS user and I have a question about LINUX ABAQUS.
   Actually, when i finish all defining precedures in LINUX ABAQUS and submit the job, the job status will always remain "submitted" and never "running",which means that my job is not calculated. And after several hours later, the message area will show me that my PC have idled for 3hours and my licensed will be checked in several minutes and several minutes later, the status still remain the same, i mean "submitted".
   Could you please tell me what the problem is and how to solve it?

Dear All,

I am a mechanical engineer by education. This is just a research question. I was seeing a diesel generator employing an old mahindra tractor engine the other day and started wondering if a Maruti 800 engine would be able to work a 10 KVA generator, and wouldnt it be more fuel effecient (and cheaper to make) then one of the generators using an old diesel engine. Any thoughts would be highly appreciated.

Thanks,

Gagandeep Sethi