MecMovies 4.0 : M6.19: Shear Stresses in Coaxial Shafts

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Diagram shows a shaft A B with an aluminum segment on the outside and a brass shaft in the inside. Both the shafts are centered on the central axis x. A torque T is applied at B. The radial and longitudinal lines are shown on the shaft. The deformation of the shaft is shown with a counterclockwise segment of angle phi subscript B, angle of twist.

In summary, the internal torques in shafts $(1)$ and $(2)$ are:

$T_{1} = 675.7 N-m T_{2} = 724.3 N-m$

Shear stresses are:

$τ_{1} = 54.83 MPa τ_{2} = 67.31 MPa$

The rotation of end $B$ is:

$ϕ_{B} = + 0.08435 rad = + 4.83 \deg$

Finished