deferentiate between stress and strain


Asked by akshatap971 | 26th Oct, 2018, 06:38: PM

Expert Answer:

Stress = Force / Area ; it is defined as applied force per unit area
Strain = change in length / Initial length
when a mass of m kg is suspended using a metallic wire or thin rod, elongation along the direction of length is taking place.
If A is the area of cross section of wire or thin rod, then stress is (m×g)/A. Unit of stress is N/m2
If the length of wile is L and is elongated to a length  L+dL due to the applied force, then strain dL/L .

Answered by Thiyagarajan K | 26th Oct, 2018, 09:57: PM

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