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Ace 402 lec 13 max stress unsymetric
Fuselage Structure
Given fuselage structure and determine
the ultimate bending strength.
 Given loads and determine the
maximum stresses applied to the
fuselage structure.
 Given loads and determine the shear
flow distribution.
ACE - Dr Mohamed Elfarran
Unsymmetrical tapered fuselage- Example
Determine the stringer stresses and forces at station 0 and station 30 due to the
given loads applied at station (150),
Neglect the skin effect.
 = 4000 腫,  = 1000 腫,  = 1500 腫.
ACE - Dr Mohamed Elfarran
Unsymmetric tapered fuselage- Example
Solution strategy:
Since the fuselage is unsymmetrical and under general applied loading. We
will use the general bending stresses equation
And we need to calculate the centroid position w.r.t. Z and Y axes.
ACE - Dr Mohamed Elfarran
Unsymmetrical tapered fuselage- Example
Section 0:
ACE - Dr Mohamed Elfarran
Unsymmetrical tapered fuselage- Example
Section 0:
ACE - Dr Mohamed Elfarran
Unsymmetrical tapered fuselage- Example
Section 0:
ACE - Dr Mohamed Elfarran
Unsymmetrical tapered fuselage- Example
Section 0:
ACE - Dr Mohamed Elfarran
Unsymmetrical tapered fuselage- Example
Section 0:
ACE - Dr Mohamed Elfarran
Unsymmetrical tapered fuselage- Example
Section 30:
ACE - Dr Mohamed Elfarran
Unsymmetrical tapered fuselage- Example
Section 30:
ACE - Dr Mohamed Elfarran
Unsymmetrical tapered fuselage- Example
Section 30:
ACE - Dr Mohamed Elfarran
Unsymmetrical tapered fuselage- Example
Section 30:
ACE - Dr Mohamed Elfarran

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Ace 402 lec 13 max stress unsymetric