Question

Explain Mechanical stress ?

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Answer 1

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★ When forces are applied on body in such a way that the body remain in static equilibrium then it gets deformed depending upon the nature of material of the body and the magnitude of deforming forces.

★ Due to the deformation of restoring force is develop in the body, this restoring force per unit area is called Machanical Stress.

Answer 2

✔Answer:

In continuum mechanics, stress is a physical quantity that expresses the internal forces that neighbouring particles of a continuous material exert on each other, while strain is the measure of the deformation of the material, which is not a physical quantity.

In SI base units: Pa = kg⋅m−1⋅s−2

SI unit: Pascal

Common symbols: σ

Dimension: M L−1 T−2

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