The handle shown in the figure is attached to a 45-mm-diameter shaft with a squa

Question

The handle shown in the figure is attached to a 45-mm-diameter shaft with a square shear key. The forces applied to the lever are P = 1,450 N. If the average                     shear stress in the key must not exceed 115 MPa, determine the minimum dimension a that must be used if the key is 30 mm long. The overall length of the handle                     is L = 0.50 m.

The handle shown in the figure is attached to a 45-mm-diameter shaft with a square shear key. The forces applied to the lever are P = 1,450 N. If the average shear stress in the key must not exceed 115 MPa, determine the minimum dimension a that must be used if the key is 30 mm long. The overall length of the handle is L = 0.50 m.

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