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febbie22
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A 2.4 m long structural aluminium pipe (series 6063-T6) is used as part of a roof structure. As part of the design process it is required to assess the suitability of different sizes of pipe.
Calculate the maximum torque that can be applied to the shaft if the maximum allowable yield stress and angle of twist are to be complied with.
Outside Diameter = 33.40mm Wall Thickness = 3.38mm Nominal Size = 25.40
Shear Modulus = 27GPA Max Allowed Angle 15 degrees Max Allowed Stress 68800000
Just wondering i need to calculate the Torque and i know the torque equation but do i just choose two out of the 3 sections ie T/J = Stress/r or do i need to use all three, as it says in the question the max stress and max angle which are in the other two sections of the equations.
when i use two i get 174.85NM which i thought was kind of low
Cheers
Calculate the maximum torque that can be applied to the shaft if the maximum allowable yield stress and angle of twist are to be complied with.
Outside Diameter = 33.40mm Wall Thickness = 3.38mm Nominal Size = 25.40
Shear Modulus = 27GPA Max Allowed Angle 15 degrees Max Allowed Stress 68800000
Just wondering i need to calculate the Torque and i know the torque equation but do i just choose two out of the 3 sections ie T/J = Stress/r or do i need to use all three, as it says in the question the max stress and max angle which are in the other two sections of the equations.
when i use two i get 174.85NM which i thought was kind of low
Cheers