Questions about static analysis in Ansys

[Zohra]

In ansys , i want to do static analysis of a section of steel pipe supported on piers . the only loads are internal pressure of water and the weight of water and steel .

1. For the weight of the structural element, on Ansys I find that there is among the loads proposed in the list of loads: "Standard Earth gravity", does that mean that the weight is not not taken automatically in the calculation by Ansys?

For the weight of the water, I think it is taken automatically when applying "Hydrostatic Pressure" since it is asked in the details to enter the value of acceleration g. Can you confirm it to me ?

2. Is it advantageous to draw the structure on Ansys instead of importing from solidworks? (in terms of mesh and calculation)

3. It is assumed that the length of span = L (span is the section between two supports). what length should I take beyond the section where the supports are?

4. As far as I understood the stiffeners and the pipe do not have to be fused so What contact should I put between the stiffener and pipe? Bonded or Frictionless or other?
thank you so much

 

[Valkarie]

1. Yes, the weight of the structural element will not be taken automatically into account in the calculation by Ansys. You will need to manually apply the load using the "Standard Earth gravity" load option. For the weight of the water, yes, it will be taken into account when applying the "Hydrostatic Pressure" load since you are asked to enter the value of acceleration g.2. It is generally advantageous to draw the structure on Ansys instead of importing from Solidworks, as Ansys has more powerful and accurate meshing capabilities than most CAD programs.3. If your span is equal to L, you should add an additional 2L of length beyond the section where the supports are, for a total span of 3L. This will allow for a more accurate representation of the real-world behavior of the structure.4. The contact between the stiffener and pipe should be set to Frictionless or Bonded, depending on how the two components are connected in reality.