Define Hook's law of eleasticity. Explain thestress-strain diagram. Ii

1.	Define Hook's law of eleasticity. Explain thestress-strain diagram. Iii
Answer» Hooke's Law It states that within the limit of elasticity, the stress induced (σ ) in the solid due to some external force is always in proportion with the strain (ε ). In other words the force causing stress in a solid is directly proportional to the solid's deformation. Consider a spring with a spring constantkthat is stretched with a forceFextends to a distancexwith reference to the initial position. Force required for deformationxis given by F=-k.x Plot the graph for the stress (σ) versus strain (ε) for a metal rod acted upon by trending tensile force.

Define Hook's law of eleasticity. Explain thestress-strain diagram. Iii

Answer»

Hooke's Law

It states that within the limit of elasticity, the stress induced (σ ) in the solid due to some external force is always in proportion with the strain (ε ). In other words the force causing stress in a solid is directly proportional to the solid's deformation. Consider a spring with a spring constantkthat is stretched with a forceFextends to a distancexwith reference to the initial position.

Force required for deformationxis given by

F=-k.x

Plot the graph for the stress (σ) versus strain (ε) for a metal rod acted upon by trending tensile force.

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