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Found 5 results

  1. Hello, I am trying to run a Linear Static Analysis of a huge assembly. I have 4 ISO Corners at the bottom. I have 2d meshed it (Simplified Geometry : Quad4 Elements only). When i fix the bottom face only of all the four ISO corners and run my simulation i get unsatisfactory results. By unsatisfactory i mean significantly high stresses and displacements. But when i create a RBE2 on each of the 4 individual ISO Corners (i.e 4 RBE2's) and apply constraint/SPC (All 6-DOFs FIXED) to those 4 RBE2s master node, i get satisfactory results. Could anyone explain why this contrasting results or mismatch?
  2. Hello, I have the following warning message: *** USER WARNING MESSAGE 9994 (BULKPM) SPC near line 26984 was entered more than once, with differences starting at field SID However, when i try to find the line by the id 26984 it say that no line with the id was found or selected. How can i identify the line? I have entered SPC on several surfaces instead of being in the elements, can that be the reason? Thanks in advance
  3. Hello, I am trying to make a movement of nodes as shown in the image. I want the movement to be lika a circle ( i dont want rectangular displacements). How would you recommend to do this? INitial point is 1 and final point is 2. I have tried an SPC with two DOFs constrained (x,y) with it respective displacement values in two DOFs 1 and 2. How would you recommend to make this displacemnet.? Thank you in advance for your itme.
  4. Hello, I have a simple question: While selecting boundary conditions I have the option to select SPC or SPCD? What are the differences between them? I have used SPC to force initial displacement or rotations of nodes. What makes SPCD special? what can i do with them. <Thanks in advance!
  5. Hi, I have a question about boundary condition setting for this work. Assume this is a chassis of truck and fixed. 1) How to set contact between surface and surface? 2) How to fixed? I need to applied load to this plate with 0-100kN in 5 sec of time 3).How to applied? I tried the example but don't understand. I make this with myself don't have adviser. I would like you to help me, Thank you.
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