API reference

Semi-analytical models for plates, shells and panels (panels)

Ritz models for plates, shells and stiffened panels, single or multi-domain, using Bardell’s hierarchical functions as approximation functions:

• Shell: plates and cylindrical shells, see panels.models

• MultiDomain: assemblies of shell domains connected by penalties, see panels.multidomain.connections

• BladeStiff1D and BladeStiff2D: blade stiffeners

• StiffPanelBay: stiffened panel bays

These classes are saved to and loaded from zip files with JSON and NumPy arrays, see panels.json_io.

The structural matrices and force vectors of these classes are solved with structsolve.

• Plates and cylindrical shells (panels.shell)
• External force vector (panels.shell_fext)
• Contour plots (panels.plot_shell)
• Model database (panels.modelDB)
• Multi-domain assemblies (panels.multidomain)
• Cylinders modeled as multi-domain assemblies
• Panels with a T-stiffener modeled as 2D domains
• Blade stiffeners (panels.stiffener)
• Stiffened panel bays (panels.stiffpanelbay)
• Saving and loading in a JSON + NumPy zip container (panels.json_io)
• save()
• load()