Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations KootK on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. ab8abhi

    'TIME STEP LESS OR EQUAL ZERO' ----------How do I solve this error?

    Hi everyone, I am getting this error in Radioss Block. My min element type step (tetra) is 10e-6. I am not sure if I can increase this because for doing that I will have to increase my element length which will only leave me with 1 element through the thickness. And it will not give reliable...
  2. ab8abhi

    how to mesh an assembly of 4 thin disks joined together? (hypermesh)

    Hello RB, I am was confused about the axisymmetric problem. Because if you are modelling a hollow cylinder you will draw a rectangular cross section , if you are modelling a ring ,you will draw a circular cross section. So in this sense a rectangular cross section (one end at the symmetry axis)...
  3. ab8abhi

    how to mesh an assembly of 4 thin disks joined together? (hypermesh)

    Ok. I get it now. I will change the BC. I think I can save a lot of processing time if I do an Axi- symmetric analysis. But I am not sure how to do it. I know if I draw a rectangle and rotate it in 360 degrees I will get a disk. But what BCs should I use for the inner surface (near the centre)...
  4. ab8abhi

    how to mesh an assembly of 4 thin disks joined together? (hypermesh)

    thanks Irstuff and RB. I don't get what is wrong with the distributed constraint on the bottom surface. e.g, if you keep a solid cylinder on a floor on its flat surface and apply a pressure on the other flat surface then it will deform right. I want to choose a combination of these 4 disks...
  5. ab8abhi

    how to mesh an assembly of 4 thin disks joined together? (hypermesh)

    Hi rb1957, I am trying to do a simple analysis that will be used in a helmet model. This simple static analysis is used to get optimum thicknesses for different materials. The different disks are bonded together so that there is no sliding between them. I used 2D automesh (mixed trias and quads)...
  6. ab8abhi

    how to mesh an assembly of 4 thin disks joined together? (hypermesh)

    Hi all, I am trying to do a fea of an assembly of 4 thin disks (3 disks of 2 mm thickness and 1 disk of 20 mm thickness ; all 6 inches in dia.; all of different materials) in Hypermesh. When I use solid elements which is not recommended, I get too many elements and it takes huge time to analyze...

Part and Inventory Search