Machine Design
In case of thick cylinders, the tangential stress across the thickness of cylinder is

Maximum at the inner surface and zero at the outer surface
Maximum at the outer surface and zero at the inner surface
Maximum at the outer surface and minimum at the inner surface
Maximum at the inner surface and minimum at the outer surface

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Machine Design
The effective stress in wire ropes during normal working is equal to the stress due to

Bending plus stress due to acceleration/retardation
Axial load plus stress due to acceleration/retardation
Axial load plus stress due to bending
Acceleration/retardation of masses plus stress due to bending

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