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Generally, cylinders are employed for transporting or storing fluids i.e. liquids and gases. Examples-: LPG cylinders, boilers, storage tanks, etc.
Due to the fluids inside a cylinder, these are subjected to fluid pressure or internal pressure (Say P). Hence at any point on the wall of the cylinder, three types of stresses are developed in three perpendicular directions. These are:-
1. Circumferential Stress or Hoop Stress (h):
This stress is directed along the tangent to the circumference of the cylinder. This stress is tensile in nature. This stress tends to increase the diameter.
The bursting in the cylinder will take place if the force due to internal fluid pressure(P) acting vertically upwards and downwards becomes more than the resisting force due to circumferential stress (h) developed in the cylinder.
2. Longitudinal Stress (L):
This stress is directed along the length of the cylinder. This stress is also tensile in nature. This stress tends to increase the length.
3. Radial Stress (r):
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.
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SolidWorks Tutorial | Part Modelling | Auxiliary Fork:
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Solidworks Beginners Exercise :
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25 апр 2020
