what is the difference between stress and pressure.
Answers
Answer:
Pressure is External force on a unit area whereas stress is internal force applied by material against deformation (when a load is applied on it) on a unit area. Pressure is always compressive whereas stress may be tensile, compressive or shear.
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Answer:
Difference between Stress and Pressure:
Stress can be defined as the amount of force being exerted per unit area.
Pressure can be defined as the amount of force applied per unit area.
Stress can be represented as (strain) / (Young’s modulus)
Pressure can be mathematically represented as (force) / (area)
Stress can only be exerted on solids.
Pressure on the other hand can be exerted on both liquids and gases.
Stress on the other hand can be either a positive or a negative force, this can be represented as Stress= – F/A.
Pressure is a positive unit and can be represented as F/A