Article | REF: C2512 V1

Structural instabilities of plates

Author: René MAQUOI

Publication date: May 10, 2010, Review date: February 16, 2015

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1. Notions of "plate" and "veiling

1.1 The "plate" component

Simplistically, a plate can be defined as a structural component in which one of the three dimensions, known as "thickness", is small in relation to the other two. In principle, it is a flat structural being, meaning that the mid-plane, the surface at mid-thickness, is initially assumed to be perfectly flat.

To avoid unnecessary mathematical complications, we limit ourselves here to considering only plates for which both :

  • the thickness t is constant ;

  • the shape is rectangular and defined by length a and width b ;

  • the constituent material – for structural steels, in this case –, is assumed to be homogeneous and isotropic....

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