BFLEX2010

Q: What are the proper ICODE values to use for a carcass geometry?

A: The carcass model does not use the ICODE specifications directly. However, the user must supply 2 separate segments with ICODE 2. The rest should be 0.

Q: Can I use ccode manual in a flexcross crossection for carcass or pressure spiral if I plan to process the model using BOUNDARY and PFLEX?

A: No, you must describe the geometry using CROSSGEOM BFLEX

Q: Is it important where the origin of the curve is positioned when I describe a closed profile, such as the geometry of the pressure armour layer?

A: No, BFLEX will calculate area center and place the geometry accordingly.

Q: I have noticed that if the thickness of the flexlok profile in the crossgeometry card and the the flexcross card differs, the software runs anyway. How are the thicknesses related?

A: For the BFLEX2010 step of the analysis, the geometry of the crossgeom curve is used for establishing areas, stiffnesses etc. The thickness will be according the to flexcross card and the radial position of the layer will be using that information.

When proceeding to the BOUNDARY step, contact from the neighbouring layers is applied as a contact pressure and hence inconsistence in thickness it not a problem for that part of the contact. However, the nub/valley contact are using the geometry from the curve to find contact. Profiles of type CCLI for example, may in this case start with large contact forces if the geometries are positioned such that they overlap. Or in the oposite case missing contacts/too large gaps.