Question

Define stress state its si unit and dimensions

Answer 1

Answer:

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Explanation:

Stress is the force per unit area on a body that tends to cause it to change shape. ... In SI units, force is measured in newtons and area in square metres. This means stress is newtons per square meter, or N/m2. However, stress has its own SI unit, called the pascal. 1 pascal (symbol Pa) is equal to 1 N/m2.

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Answer 2

The definition of stress is as follows :

Explanation:

Stress is defined as the force acting across a "small" boundary per unit area of that boundary.

As we know that the force acting per unit area is called pressure exerted by it. Since, stress is as same as pressure. So, the SI unit of stress is Pascal. Its dimensional formula is as same as pressure i.e. M¹L⁻¹T⁻².

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