Software Forms > Sizing Form > Dimensions Tab > Uniaxial Stiffened Panel Family

Uniaxial Stiffened Panel Family

t_tf = Top face thickness (material assignment)
t_w = Web thickness (material assignment)
t_bf = Bottom face thickness (material assignment)
H = Total height
S = Stiffener spacing
W_b = Bottom flange width
W_t = Total top flange width
t_fl_top = Top flange thickness
t_{fl bot} = Bottom flange thickness

Concept	t_tf	t_w	t_bf	H	S	W_b	W_t	t_{fl top}	t_{fl bot}
Integral Blade Stiffened
"I" Stiffened, Bonded
"I" Stiffened, Fastened
"I" Stiffened, Bonded, Continuous
"T" Stiffened, Bonded
"T" Stiffened, Fastened
"T" Stiffened, Bonded, Continuous
Integral "T" Inverted, Stiffened
"Z" Stiffened, Bonded
"Z" Stiffened, Fastened
"J" Stiffened, Bonded
"J" Stiffened, Bonded, Continuous
"C" Stiffened, Bonded
Integral "L" Stiffened
Angle Stiffened, Bonded
Integral Blade Stiffened Sandwich
"I" Stiffened, Bonded Sandwich
Reinforced Core Sandwich				*

* The height variable is assigned a material corresponding to the foam for the Reinforced Core Sandwich concept.

"Continuous" refers to whether or not the flanges are continuous from one stiffener to another. Typically, they are "discontinuous" which must be specified on the Concepts tab.

Options

Continuous flange concepts Specifies cross sections with continuous attached flanges. Available for "J", "T", and "I" sections only.
Non-continuous flange concepts Specifies cross sections with non-continuous flanges (typical).
Bonded stiffener concepts Specifies concepts where the stiffener is bonded to the facesheet.
Fastened stiffener concepts Specifies concepts where the stiffener is fastened to the facesheet. The number of fasteners per flange is specified on the Options tab.
Link flange and web thickness For continuous materials, specifies that the thickness of each portion of the stiffener is equal.
Link facesheet materials For sandwich concepts, apply the top facesheet materials to the bottom facesheet. Bottom facesheet material selections are ignored. The resulting materials will always be equivalent.
Link materials for facesheets and core Core and bottom facesheet materials are ignored. The resultant material in the top facesheet, bottom facesheet, and stiffener will be the same.
Link layups/thicknesses (requires material linking) The resultant material thickness in the top facesheet, bottom facesheet, and stiffener web will be the same.

Tips

If core material linking is disabled, be sure to assign materials to the web object (stiffener) on the Variables tab.
Make sure either the bonded or fastened concepts option is selected.

Bonded panels will transfer N_y and N_xy load through the attached flange. For fastened panels, these load components will travel through the skin only. See Panel Smeared Stiffness.
Make sure either the continuous or non-continuous flanged concepts option is selected. Typically you will want non-continuous flanges.