search
arrow-left Previous
Next arrow-right
Q: The necking in case of ductile materials begins at the
  • A. elastic limit point
  • B. upper yield point
  • C. lower yield point
  • D. ultimate point
Correct Answer: Option D - Necking is a type of plastic deformation observed in ductile materials subjected to tensile stress. This deformation is characterized by a localized reduction in the cross-sectional area of the material, giving it a "V" or 'neck' shape. • Necking in a ductile material is observed after the body crosses the point of ultimate strength on the stress- strain curve.
D. Necking is a type of plastic deformation observed in ductile materials subjected to tensile stress. This deformation is characterized by a localized reduction in the cross-sectional area of the material, giving it a "V" or 'neck' shape. • Necking in a ductile material is observed after the body crosses the point of ultimate strength on the stress- strain curve.

Explanations:

Necking is a type of plastic deformation observed in ductile materials subjected to tensile stress. This deformation is characterized by a localized reduction in the cross-sectional area of the material, giving it a "V" or 'neck' shape. • Necking in a ductile material is observed after the body crosses the point of ultimate strength on the stress- strain curve.