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5. Ultimate sail loads
5.1 Analysis of the critical load concept
The concept of critical elastic buckling load is associated with an ideal plate. Consequently :
it postulates an indefinitely elastic material, whereas the latter has a finite yield point;
it ignores structural imperfections, in particular the presence of residual stresses resulting from manufacturing procedures (rolling of sheets and sections used for stiffening) and fabrication (welding to join sheets together and fix the stiffening);
it assumes that the plate is initially perfectly flat, and thus ignores any geometric imperfections, in particular the inevitable flatness defects resulting from rolling, but above all from the...
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Ultimate sail loads
Ruin models for plate buckling
Bibliography
Standards and norms
- Eurocode 3 – Design of steel structures – Part 1-5: Plated structural elements. European Standard, European Committee for Standardization, Brussels. - EN 1993-1-5 - Octobre 2006
- Eurocode 3 – Design of steel structures: General rules and rules for buildings. CEN, Brussels. - ENV 1993-1-1 - April 1992
- JRC Ispra and ECCS-CECM-EKS, Brussels, 1ère éd., October 2007 (document freely downloadable from http://eurocodes.jrc.ec.europa.eu)....
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