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This is Fig. 1 from the 2005 substiff paper. This slide shows a STAGS sub-domain model created by the PANDA2 processor called "STAGSUNIT".
This STAGS sub-domain model is used for the prediction of local and inter-ring buckling. The sub-domain includes 1 major ring bay x 3 major stringer bays.
The case name = testax4p ("p" for "perfect shell"). The perfect shell has been optimized by PANDA2.
Shown here is bifurcation buckling mode 1, STAGS buckling load factor, Pcr = 0.98903. Pcr = 1.0 is the design load.
Loading used for all the configurations studied in this paper:
Axial Resultant (lb/in), Nx Load Set A = -100000 lb/in
Hoop Resultant (lb/in), Ny
Load Set A = -20000 lb/in
In-plane shear (lb/in), Nxy Load Set A = 20000 lb/in
Uniform pressure, (psi),p Load Set A = -200 psi
Zero loading in Load Set B
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