Critical Buckling Pressure of layered Orthotropic Cylinders with Stiffened ends under External Hydrostatic Pressure
10/12/12
REQUIRED:
Find the Critcal Buckling Pressure for a given external hydrostatic pressure.
ASSUME:
1.
GIVEN:
Cylinder Radius (inside ??):
Cylinder Length:
Number of Layers:
Lamina thickness:
SOLUTION:
Lamina Properties:
Stiffness Matrix Quantities:
Direction Transformations:
Where:
Shell Thickness:
Mean Radius of Shell (Rn):
Lamina distances from Mean Radius
Elastic Constants (for stiffened multilayered Orthotropic Cylinders):
(A11)
Determinate Coeff's:
(Eq. #40 pp17)
(Eq. 5.53
Section 4.3.3
Critical Buckling Press.:
Min. Buckling Press.: