Diference between pressure and stress?
Question asked by chandruvenkat in #Coffee Room on Jul 28, 2012
I wish to understand the real difference between pressure and stress? Isn't it one and the same thing? Posted in: #Coffee Room
pressure is externaly applied on any body while the stress is internal resistance of the body
pressure is only give informatoin about force and area but stress give information about difomation also.
pressure is an externally applied force per unit area, while stress is internally developed in a material when forces are applied.
pressure acts in all directions, but stress acts only in one particular direction(in the direction of application of force).
the above mentioned replies are good but you can also recognize the pressure as the 'CAUSE' and stress as the 'EFFECT'.
pressure will act at one point in all direction and stress will act on particular area.chandruvenkatdifference between pressure and stress?
Though both pressure and stress are functions of force and area, pressure distinguishes itself from stress in that it causes the exertion of force in all direction in the given area, while stress accompanies the applied force in a direction opposite to that of the applied force in a given cross-sectional area.
Pressure is the external force acting over a unit surface area of a material. Stress is an internal force acting over a cross sectional area within the material.
but both hav a same unit?
pressure is applied externally in any direction but stress is applied only in the opposite direction of force applied...chandruvenkatdifference between pressure and stress?
stress is "induced" , not "applied"nibhanipressure is applied externally in any direction but stress is applied only in the opposite direction of force applied...
depends on ur analysis way it can be induced by itself and applied by resisting particle...zaveristress is "induced" , not "applied"