Machine Design
The plasticity is the property of a material which enables it to

Regain its original shape after deformation when the external forces are removed
Retain deformation produced under load permanently
Draw into wires by the application of a tensile force
Resist fracture due to high impact loads

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

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

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