Pipeline bent elastically during laying. Bend radius may be R>10*DN. Unlike an ordinary large radius bend, an elastic bend has initial bending stresses caused by pipeline bending during laying process. Central bend angle should not exceed 90 degrees (more...).
The difference between a large radius bend and a elastic bend is that a large radius bend keeps its bent shape without any external forces (fig. 1.a). An elastic bend is a straight pipe element (fig. 1.b) bent forcibly during laying (fig. 1.c). If external forces are removed, an elastic bend becomes a straight pipe (fig. 1.d).
Fig. 1. Difference between large radius bend and elastic bend
The additional longitudinal stability analysis is done for this element. When these elements are used in Start-Base, an automatic stability check is performed, and in the event of insufficient stability an error message is displayed in the "errors and warnings" window. In addition, stability can be checked using Start-Elements "bend stability".
Property |
Description |
Radius, R |
Bend radius (R>10D) |
Curve length, L |
Bend length |
Tangent, T |
Tangent of the bend |
Get properties from matching pipe |
Get properties from matching pipe |
Material |
Element material from the materials database |
Nominal wall thickness, S |
Nominal (actual) wall thickness |
Mill tolerance |
Mill tolerance at the time of production. More... |
Corrosion allowance |
Corrosion and wear allowance (working mill tolerance) for wall thickness. More... |
Calculate weight automatically |
Pipe weight is calculated automatically using:
Material density is taken from the materials database |
Linear weight of pipe |
|
Linear weight of insulation |
|
Linear weight of product |
To insert an element, select the desired node and use: Insert > Insert bend > Elastic Bend
To view properties of an existing element:
Double-click the element in the 3D view
Select the
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