folded platesFolded plates are asse

folded plates
Folded plates are assemblies of flat plates rigidly connected together along their edges.in such way so as to make the structural system capable of carrying loads without.the need for additional supporting beams along mutual edges.
Types of folded plates
1- prismatic : if they consist of rectangular plates
2- pyramidal : when non-rectangular plates are used.
3- prismoidal, triangular or trapezoidal.
class ified as:
single
Multiple
Symmertrical.
Unsymmetrical.
Simple
Continuous.
Folded plates with Simple joints.
Folded plates with Multiple joints.
Folded plates with opened cross sectional
Folded plates with closed cross sectional
folded plate behaviors:
Each plate is assumed to act a beam in its own plate, this assumption is justified when the ratio of the plate to its height "width" is large enough. But when this ratio is small, the plate behaves as a deep beam.
Assumptions For the analysis of Folded plates
1- material is homogenous, elastic, isotropic, hook's law is valid, thickness of plate is small when compared to plate dimensions.
2- problem will be treafed as one-dimension it plate is assumed to behave in beam action, but in two dimensions if based on the theory of elasticily.
3- joints are assumed to be rigid enough.