8D bend modeling

Hi fellow stressers,

I have searched the forum and unable to get information how to properly model large diameter bend, in this case DN150 8D bend. Can anyone share how to correctly model it and how to apply the right SIF?

Thanks

Take the nominal OD, multiply by 8, and enter that value in the "bend radius" field.

To take the response a bit further, CAESAR will automatically calculate SIFs and flexibility according to the code.

If you believe the SIFs and flexibility factors from the code to be inaccurate, then you'll need to calculate those externally and input them separately using the SIF input and bend flexibility parameters.

Along the same vein, if your 8D bend has intermediate branches and the like, it's a bit of a challenge to find those points, but I posted the formulas on here some time ago.

Hi Richard and Michael, many thanks for the explanation.