- Stress and pressure are the two important terms used frequently in science and technology.
- Though they give the same meaning, there are unique characteristics for each term.
- Could you explain clearly the
Difference Between Them with Some Examples?
Pressure: Pressure is defined as the amount of force applied per unit area.
Pressure is used in situations of mechanical things where a certain amount of pressure is applied in a hydraulic machine. Stress is related to material engineering where it is used with regard to the wires and sheets.
- Pressure is the external force acting a body per unit area. Pressure belongs to the thermodynamic property.
- Pressure is given by (force)/(area)
Stress: Stress is the amount of force per unit area experienced by a material.
So the pressure is the external quality whereas stress is an internal force experienced by a material.
- Stress is a force generated internally when an external force acts on a body.
- Stress has structural properties. It is developed within a body to resist an external force.
Difference Between Stress and Pressure in tabular form
Stress |
Pressure |
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Pressure can be defined as “The amount of force applied per unit area”. |
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Pressure can be represented as force and area. |
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The pressure is always a positive force. |
The pressure is an intrinsic property and most of the time related to fluids. It depends on the momentum transfer between the atoms of a liquid or gas volume (molecules constrained inside the volume) on a micro-scale.