When the material database was created CAESAR II didn't perform a hydrotest, so Sy wasn't necessary. Since then we've added Sy to some of the materials, but not all.
If you use a material where the Sy isn't in the database, you can either:
- add Sy to the input or
- add Sy to the material database so you can reference it in the future.
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Regards,
Richard Ay - Consultant