Try to remove your bolts, as simulation express (2009) or previous cosmos express only analyse parts and not asseblies. I would asume that at hand calc on the forces acting on the passenger in the seat will give you the required input for side forces in corners and the much more severe forces in...
In my opinion, the use of software for pressure vessel calculations is not about your level of experience. Shit in = shit out, wether you use homemade spreadsheets, code software (advanced spreadsheets) or FEA (very user dependent).
However, by applying a recognized and up to date software for...
Crompto29,
The EN13445 is in common use in Europe. It is maybe most used in the countries that have contributed less to the standard, like Finland, Norway, Sweden, and Eastern Europe.
The major contributes to the standard development have been UK, France and Germany, with their national...