What is meant by radial stress?
Radial stress is the difference in wellbore pressure and pore pressure and acts along the radius of the wellbore. Wellbore pressure and pore pressure both stem from fluid pressure acting equally in all directions.
What is radial and hoop stress?
circumferential stress, or hoop stress, a normal stress in the tangential (azimuth) direction. axial stress, a normal stress parallel to the axis of cylindrical symmetry. radial stress, a normal stress in directions coplanar with but perpendicular to the symmetry axis.
What is radial stress in a cylinder?
The radial stress for a thick-walled cylinder is equal and opposite to the gauge pressure on the inside surface, and zero on the outside surface. The circumferential stress and longitudinal stresses are usually much larger for pressure vessels, and so for thin-walled instances, radial stress is usually neglected.
What is meant by circumferential stress?
Circumferential stress is twice longitudinal stress Internal pressure can be produce by water, gases or others. When a thin – walled cylinder is subjected to internal pressure, three are two mutually stresses: Circumferential or Hoop stress.
What is axial stress formula?
Axial stress is defined by Eq. (4.64):(4.64)σa=FeAs+σbwhere σa=total axial stress (psi), Fe=effective tension/compression (lbf), As=cross-sectional area (in. 2), σb=bending stress (psi).
What is circumferential and longitudinal stress?
Circumferential stress is the stress acting along the circumferential direction, it is generally tensile in nature. Longitudinal stress is the stress which acts along the length and it is also tensile in nature whereas radial stress which acts in the direction of the radius is compressive in nature.
What is an axial stress?
Axial Stress – is the result of a force acting perpendicular to an area of a body, causing the extension or compression of the material.
What is hoop and longitudinal stress?
The hoop stress increases the pipe’s diameter, whereas the longitudinal stress increases with the pipe’s length. The hoop stress generated when a cylinder is under internal pressure is twice that of the longitudinal stress. Longitudinal joints of a pipe carry twice as much stress compared to circumferential joints.
What is a longitudinal stress?
Longitudinal Stress = Deforming Force / Area of cross-section = F/A. As the name suggests, when the body is under longitudinal stress- The deforming force will be acting along the length of the body. Longitudinal stress results in the change in the length of the body. Hence, thereby it affects slight change in diameter …
What is lateral stress?
Lateral stress is the stress produced in lateral direction. Lateral strain is defined as the ratio of the change in diameter of a circular bar of a material due to deformation in the longitudinal direction.
What is longitudinal stress and strain?
A longitudinal strain is defined as. Change in the length to the original length of an object. It is caused due to longitudinal stress and is denoted by the Greek letter epsilon 𝜺.
What is lateral stress and longitudinal stress?
In continuum mechanics, lateral strain, also known as transverse strain, is defined as the ratio of the change in diameter of a circular bar of a material to its diameter due to deformation in the longitudinal direction.
What is lateral and longitudinal strain?
The lateral strain is the ratio of change in the diameter of the wire to its change in diameter in longitudinal direction. The longitudinal strain is the ratio of change in the length of the wire to the original length of the wire. The ratio of lateral strain to the longitudinal strain is called Poisson’s ratio.