A structural component in a fighter jet aircraft has a cellular cross-section (Fig. Q1). The component is 2 m long and is fabricated from an Al alloy, whose modulus of rigidity is 30 GPa. During a certain maneuver of the aircraft, a torque of 40 Nm is applied to the component. Using the Membrane Analogy Method, calculate: (a) the torsional shear stress in each cell of the cross-section; and (b) the angle of twist of the component, giving your answer in degrees. 2mm Imm 15 -1:5y 600mm

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A structural component in a fighter jet aircraft has a cellular cross-section (Fig. Q1).
The component is 2 m long and is fabricated from an Al alloy, whose modulus of rigidity
is 30 GPa.
During a certain maneuver of the aircraft, a torque of 40 Nm is applied to the component.
Using the Membrane Analogy Method, calculate:
(a) the torsional shear stress in each cell of the cross-section; and
(b) the angle of twist of the component, giving your answer in degrees.
2mm
75
15m
600mm
FIG. Q1
Transcribed Image Text:A structural component in a fighter jet aircraft has a cellular cross-section (Fig. Q1). The component is 2 m long and is fabricated from an Al alloy, whose modulus of rigidity is 30 GPa. During a certain maneuver of the aircraft, a torque of 40 Nm is applied to the component. Using the Membrane Analogy Method, calculate: (a) the torsional shear stress in each cell of the cross-section; and (b) the angle of twist of the component, giving your answer in degrees. 2mm 75 15m 600mm FIG. Q1
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