Question

diff. between pressure and stress..?

Answer 1

Pressure is often used with fluids (gases or liquids), whereas stress is more often used with solids. One major difference is that pressure only acts perpendicular to a surface, whereas stress can also be parallel to a surface as well as perpendicular to it. A stress parallel to a surface is called shear stress.

Answer 2

Pressure is often used with fluids

 stress is more often used with solids.

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