what is the difference between pressure and stress?

Answer 1

Pressure is an external stimulus on a person.

Stress is the internal reaction to the external stimulus.

Answer 2

Pressure (symbol: p) is the force per unit area applied on a surface in a direction perpendicular to that surface. Mathematically:

P=F/A

where:
p is the pressure
F is the normal force
A is the area.
Pressure is transmitted to solid boundaries or across arbitrary sections of fluid normal to these boundaries or sections at every point. It is a fundamental parameter in thermodynamics and it is conjugate to volume.

AXIAL STRESS
What is known as Axial (or Normal) Stress, often symbolized by the Greek letter sigma, is defined as the force perpendicular to the cross sectional area of the member divided by the cross sectional area. Or

SIGMA=F/A(UNITS=lb/inch^2 or kg/cm^2

A solid rod of length L, is under simple tension due to force F. If we divide that axial force, F, by the cross sectional area of the rod (A), this quotient would be the axial stress in the member. Axial stress is the equivalent of pressure in a gas or liquid. As you remember, pressure is the force/unit area. So axial stress is really the 'pressure' in a solid member. Now the question becomes, how much 'pressure' can a material bear before it fails.

Answer 3

Pressure is outside influences that are trying to get you to do something.
Stress is a persons inability to effectively handle the pressure, which then may cause physical symptoms such as migraines, headaches or body aches.
CT

Answer 4

Stress is a form of pressure. It could be compressive or tensile.

Answer 5

Pressure is the force pushing per unit area, that is, the amount of bullshit falling on your shoulders.
Stress is the force pulling per unit area, that is, the number of leaches sucking up your daily life.

Answer 6

pressure is a direct force of pushing

Stress is a force trying to prevent movement